MS/NAS Keylocking Insert
MS inserts typically refer to Military Standard (MS) thread inserts, which are high-performance solid threaded inserts made to meet U.S. military specifications.
These are used in applications where reliability, durability, and performance under stress are essential — such as in aerospace, defense, and high-end industrial equipment.
MS Inserts Overview
MS inserts typically refer to Military Standard (MS) thread inserts, which are high-performance solid threaded inserts made to meet U.S. military specifications. These are used in applications where reliability, durability, and performance under stress are essential — such as in aerospace, defense, and high-end industrial equipment.
What Are MS Inserts?
"MS" stands for Military Standard, a system used by the U.S. Department of Defense for standardizing parts and materials. MS inserts fall under this classification, and common types include:
| Insert Type | Description |
|---|---|
| MS51830 | Solid insert, key-locking type |
| NAS1394 / NAS1130 | Aerospace-spec solid or keyserts |
Where Are MS Inserts Used?
MS inserts are found in industries that demand high strength-to-weight ratios, vibration resistance, and corrosion resistance:
Aerospace
- Aircraft engine housings, nacelles, avionics
- Mounting components in aluminum structures
Defense & Military Equipment
- Communication devices, radar systems
- Vehicles and weapon systems
Aviation Maintenance and Repair (MRO)
- Used to repair stripped threads in aluminum or magnesium parts
High-End Industrial Applications
- Robotics, precision instruments
- Motorsport applications (Formula 1, aerospace-grade builds)
Key Benefits of MS Inserts
- Stronger threads in softer materials (e.g., aluminum)
- Wear-resistant for repeated assembly/disassembly
- Corrosion-resistant, particularly in aerospace environments
- Some include locking mechanisms to prevent fastener loosening under vibration
Miniature Keylocking Threaded Inserts
Keylocking Threaded Inserts
Specifications
| MS/NAS | Acme Part Number | Material | Locking? | Internal Thread Class 3b | External Thread Class 2a | "G" Thread Length | "H" Length | "J" Max Dist. Top of Part to Locking Feature | "K" Counterbore Depth | Install Tool Part No. |
|---|---|---|---|---|---|---|---|---|---|---|
| — | 217-076281 | 303 CRES | Non-Locking | 0 - 80 | 6 - 40 | .085 | .100 | — | — | 217-072550 |
| — | 217-076282 | 303 CRES | Non-Locking | 2 - 56 | 6 - 40 | .085 | .100 | — | — | 217-072551 |
| MS51830-101 | 217-076283 | 303 CRES | Non-Locking | 2 - 56 | 8 - 32 | .090 | .120 | — | — | 217-072552 |
| MS51830-101L | 217-077283 | 303 CRES | Self-Locking | 2 - 56 | 8 - 32 | .090 | .120 | — | — | 217-072552 |
| MS51830-102 | 217-076284 | 303 CRES | Non-Locking | 4 - 40 | 10 - 32 | .125 | .170 | — | — | 217-072554 |
| MS51830-102L | 217-077284 | 303 CRES | Self-Locking | 4 - 40 | 10 - 32 | .125 | .170 | — | — | 217-072554 |
| NAS1395C04 | 217-076290 | 303 CRES | Non-Locking | 4 - 40 | 12 - 24 | .25 | — | — | 72864/72564 | |
| NAS1395C04L | 217-077290 | 303 CRES | Self-Locking | 4 - 40 | 12 - 24 | .25 | 0.109 | — | 72864/72764 | |
| MS51830-103 | 217-076285 | 303 CRES | Non-Locking | 6 - 32 | 12 - 28 | .125 | .170 | — | — | 217-072556 |
| MS51830-103L | 217-077285 | 303 CRES | Self-Locking | 6 - 32 | 12 - 28 | .125 | .170 | — | — | 217-072556 |
| NAS1395C06 | 217-076291 | 303 CRES | Non-Locking | 6 - 32 | 1/4 - 20 | .25 | — | — | 72860/72566 | |
| NAS1395C06L | 217-077291 | 303 CRES | Self-Locking | 6 - 32 | 1/4 - 20 | .25 | 0.109 | — | 72860/72766 | |
| NAS1394C08 | 217-076288 | 303 CRES | Non-Locking | 8 - 32 | 1/4 - 20 | .25 | — | — | 72860/72560 | |
| NAS1394C08L | 217-077288 | 303 CRES | Self-Locking | 8 - 32 | 1/4 - 20 | .25 | 0.109 | — | 72860/72760 | |
| MS51830-104 | 217-076286 | 303 CRES | Non-Locking | 8 - 32 | 1/4 - 28* | .175 | .220 | — | — | 217-072558 |
| MS51830-104L | 217-077286 | 303 CRES | Self-Locking | 8 - 32 | 1/4 - 28* | .175 | .220 | — | — | 217-072558 |
| NA1395C08 | 217-076300 | 303 CRES | Non-Locking | 8 - 32 | 5/16 - 18 | 0.312 | — | 0.04 | 217-072590 | |
| NA1395C08L | 217-077300 | 303 CRES | Self-Locking | 8 - 32 | 5/16 - 18 | 0.312 | 0.22 | 0.04 | 217-072590 | |
| MS51831-101 | 217-076301 | 303 CRES | Non-Locking | 10 - 24 | 5/16 - 18 | 0.312 | — | 0.04 | 217-072591 | |
| MS51830-105 | 217-076321 | 303 CRES | Non-Locking | 10 - 24 | 5/16 - 18 | 0.312 | — | 0.07 | 217-072568 | |
| MS51831-101L | 217-077301 | 303 CRES | Self-Locking | 10 - 24 | 5/16 - 18 | 0.312 | 0.22 | 0.04 | 217-072591 | |
| MS51830-105L | 217-077321 | 303 CRES | Self-Locking | 10 - 24 | 5/16 - 18 | 0.312 | 0.22 | 0.07 | 217-072568 | |
| MS51832-101 | 217-076333 | 303 CRES | Non-Locking | 10 - 24 | 7/16 - 14 | 0.312 | — | 0.07 | 217-072628 | |
| MS51832-101L | 217-077333 | 303 CRES | Self-Locking | 10 - 24 | 7/16 - 14 | 0.312 | 0.22 | 0.07 | 217-072628 | |
| MS51830-201 | 217-076521 | 303 CRES | Non-Locking | 10 - 32 | 5/16 - 18 | 0.312 | — | 0.07 | 217-072569 | |
| NAS1394C3 | 217-076521 | 303 CRES | Non-Locking | 10 - 32 | 5/16 - 18 | 0.312 | — | 0.07 | 217-072569 | |
| NAS1394C3L | 217-077521 | 303 CRES | Self-Locking | 10 - 32 | 5/16 - 18 | 0.312 | 0.22 | 0.07 | 217-072569 | |
| MS51830-201L | 217-077521 | 303 CRES | Self-Locking | 10 - 32 | 5/16 - 18 | 0.312 | 0.22 | 0.07 | 217-072569 | |
| MS51831-201 | 217-076501 | 303 CRES | Non-Locking | 10 - 32 | 3/8 - 16 | 0.312 | — | 0.07 | 217-072592 | |
| NAS1395C3 | 217-076501 | 303 CRES | Non-Locking | 10 - 32 | 3/8 - 16 | 0.312 | — | 0.07 | 217-072592 | |
| NAS1395C3L | 217-077501 | 303 CRES | Self-Locking | 10 - 32 | 3/8 - 16 | 0.312 | 0.22 | 0.07 | 217-072592 | |
| MS51831-201L | 217-077501 | 303 CRES | Self-Locking | 10 - 32 | 3/8 - 16 | 0.312 | 0.22 | 0.07 | 217-072592 | |
| MS51832-201 | 217-076533 | 303 CRES | Non-Locking | 10 - 32 | 7/16 - 14 | 0.312 | — | 0.07 | 217-072629 | |
| MS51832-201L | 217-077533 | 303 CRES | Self-Locking | 10 - 32 | 7/16 - 14 | 0.312 | 0.22 | 0.07 | 217-072629 | |
| MS51830-106 | 217-076322 | 303 CRES | Non-Locking | 1/4 - 20 | 3/8 - 16 | 0.375 | — | 0.07 | 217-072570 | |
| MS51830-106L | 217-077322 | 303 CRES | Self-Locking | 1/4 - 20 | 3/8 - 16 | 0.375 | 0.22 | 0.07 | 217-072570 | |
| MS51832-202 | 217-076534 | 303 CRES | Non-Locking | 1/4 - 28 | 1/2 - 13 | 0.375 | — | 0.07 | 217-072631 | |
| MS51832-102 | 217-076334 | 303 CRES | Non-Locking | 1/4 - 20 | 1/2 - 13 | 0.375 | — | 0.07 | 217-072630 | |
| MS51832-102L | 217-077334 | 303 CRES | Self-Locking | 1/4 - 20 | 1/2 - 13 | 0.375 | 0.22 | 0.07 | 217-072630 | |
| MS51832-202L | 217-077534 | 303 CRES | Self-Locking | 1/4 - 20 | 1/2 - 13 | 0.375 | 0.22 | 0.07 | 217-072631 | |
| MS51831-102 | 217-076302 | 303 CRES | Non-Locking | 1/4 - 20 | 7/16 - 14 | 0.375 | — | 0.07 | 217-072593 | |
| MS51831-102L | 217-077302 | 303 CRES | Self-Locking | 1/4 - 20 | 7/16 - 14 | 0.375 | 0.22 | 0.07 | 217-072593 | |
| MS51830-202 | 217-076522 | 303 CRES | Non-Locking | 1/4 - 28 | 3/8 - 16 | 0.375 | — | 0.07 | 217-072571 | |
| NAS1394C4 | 217-076522 | 303 CRES | Non-Locking | 1/4 - 28 | 3/8 - 16 | 0.375 | — | 0.07 | 217-072571 | |
| MS51830-202L | 217-077522 | 303 CRES | Self-Locking | 1/4 - 28 | 3/8 - 16 | 0.375 | 0.22 | 0.07 | 217-072571 | |
| NAS1394C4L | 217-077522 | 303 CRES | Self-Locking | 1/4 - 28 | 3/8 - 16 | 0.375 | 0.22 | 0.07 | 217-072571 | |
| NAS1395C4 | 217-076502 | 303 CRES | Non-Locking | 1/4 - 28 | 7/16 - 14 | 0.375 | — | 0.07 | 217-072594 | |
| MS51831-202 | 217-076502 | 303 CRES | Non-Locking | 1/4 - 28 | 7/16 - 14 | 0.375 | — | 0.07 | 217-072594 | |
| NAS1395C4L | 217-077502 | 303 CRES | Self-Locking | 1/4 - 28 | 7/16 - 14 | 0.375 | 0.22 | 0.07 | 217-072594 | |
| MS51831-202L | 217-077502 | 303 CRES | Self-Locking | 1/4 - 28 | 7/16 - 14 | 0.375 | 0.22 | 0.07 | 217-072594 | |
| MS51831-103 | 217-076303 | 303 CRES | Non-Locking | 5/16 - 18 | 1/2 - 13 | 0.437 | — | 0.07 | 217-072595 | |
| MS51831-103L | 217-077303 | 303 CRES | Self-Locking | 5/16 - 18 | 1/2 - 13 | 0.437 | 0.22 | 0.07 | 217-072595 | |
| MS51830-107 | 217-076323 | 303 CRES | Non-Locking | 5/16 - 18 | 7/16 - 14 | 0.437 | — | 0.07 | 217-072572 | |
| MS51830-107L | 217-077323 | 303 CRES | Self-Locking | 5/16 - 18 | 7/16 - 14 | 0.437 | 0.22 | 0.07 | 217-072572 | |
| MS51832-103 | 217-076335 | 303 CRES | Non-Locking | 5/16 - 18 | 9/16 - 12 | 0.437 | — | 0.07 | 217-072632 | |
| MS51832-103L | 217-077335 | 303 CRES | Self-Locking | 5/16 - 18 | 9/16 - 12 | 0.437 | 0.22 | 0.07 | 217-072632 | |
| NAS1394C5 | 217-076523 | 303 CRES | Non-Locking | 5/16 - 24 | 7/16 - 14 | 0.437 | — | 0.07 | 217-072573 | |
| MS51831-203 | 217-076503 | 303 CRES | Non-Locking | 5/16 - 24 | 1/2 - 13 | 0.437 | — | 0.07 | 217-072596 | |
| NAS1395C5 | 217-076503 | 303 CRES | Non-Locking | 5/16 - 24 | 1/2 - 13 | 0.437 | — | 0.07 | 217-072596 | |
| NAS1395C5L | 217-077503 | 303 CRES | Self-Locking | 5/16 - 24 | 1/2 - 13 | 0.437 | 0.22 | 0.07 | 217-072596 | |
| MS51831-203L | 217-077503 | 303 CRES | Self-Locking | 5/16 - 24 | 1/2 - 13 | 0.437 | 0.22 | 0.07 | 217-072596 | |
| MS51832-203 | 217-076535 | 303 CRES | Non-Locking | 5/16 - 24 | 9/16 - 12 | 0.437 | — | 0.07 | 217-072633 | |
| MS51832-203L | 217-077535 | 303 CRES | Self-Locking | 5/16 - 24 | 9/16 - 12 | 0.437 | 0.22 | 0.07 | 217-072633 | |
| MS51830-203 | 217-076523 | 303 CRES | Non-Locking | 5/16 - 24 | 7/16 - 14 | 0.437 | — | 0.07 | 217-072573 | |
| NAS1394C5L | 217-077523 | 303 CRES | Self-Locking | 5/16 - 24 | 7/16 - 14 | 0.437 | 0.22 | 0.07 | 217-072573 | |
| MS51830-203L | 217-077523 | 303 CRES | Self-Locking | 5/16 - 24 | 7/16 - 14 | 0.437 | 0.22 | 0.07 | 217-072573 | |
| MS51830-108 | 217-076324 | 303 CRES | Non-Locking | 3/8 - 16 | 1/2 - 13 | 0.5 | — | 0.07 | 217-072574 | |
| MS51830-108L | 217-077324 | 303 CRES | Self-Locking | 3/8 - 16 | 1/2 - 13 | 0.5 | 0.24 | 0.07 | 217-072574 | |
| MS51831-104 | 217-076304 | 303 CRES | Non-Locking | 3/8 - 16 | 9/16 - 12 | 0.5 | — | 0.07 | 217-072597 | |
| MS51831-104L | 217-077304 | 303 CRES | Self-Locking | 3/8 - 16 | 9/16 - 12 | 0.5 | 0.25 | 0.07 | 217-072597 | |
| MS51832-104 | 217-076336 | 303 CRES | Non-Locking | 3/8 - 16 | 5/8 - 11 | 0.5 | — | 0.07 | 217-072634 | |
| MS51832-104L | 217-077336 | 303 CRES | Self-Locking | 3/8 - 16 | 5/8 - 11 | 0.5 | 0.25 | 0.07 | 217-072634 | |
| MS51830-204 | 217-076524 | 303 CRES | Non-Locking | 3/8 - 24 | 1/2 - 13 | 0.5 | — | 0.07 | 217-072575 | |
| NAS1394C6 | 217-076524 | 303 CRES | Non-Locking | 3/8 - 24 | 1/2 - 13 | 0.5 | — | 0.07 | 217-072575 | |
| NAS1394C6L | 217-077524 | 303 CRES | Self-Locking | 3/8 - 24 | 1/2 - 13 | 0.5 | 0.24 | 0.07 | 217-072575 | |
| MS51830-204L | 217-077524 | 303 CRES | Self-Locking | 3/8 - 24 | 1/2 - 13 | 0.5 | 0.24 | 0.07 | 217-072575 | |
| NAS1395C6 | 217-076504 | 303 CRES | Non-Locking | 3/8 - 24 | 9/16 - 12 | 0.5 | — | 0.07 | 217-072598 | |
| MS51831-204 | 217-076504 | 303 CRES | Non-Locking | 3/8 - 24 | 9/16 - 12 | 0.5 | — | 0.07 | 217-072598 | |
| NAS1395C6L | 217-077504 | 303 CRES | Self-Locking | 3/8 - 24 | 9/16 - 12 | 0.5 | 0.25 | 0.07 | 217-072598 | |
| MS51831-204L | 217-077504 | 303 CRES | Self-Locking | 3/8 - 24 | 9/16 - 12 | 0.5 | 0.25 | 0.07 | 217-072598 | |
| MS51832-204 | 217-076536 | 303 CRES | Non-Locking | 3/8 - 24 | 5/8 - 11 | 0.5 | — | 0.07 | 217-072635 | |
| MS51832-204L | 217-077536 | 303 CRES | Self-Locking | 3/8 - 24 | 5/8 - 11 | 0.5 | 0.25 | 0.07 | 217-072635 | |
| MS51831-105 | 217-076305 | 303 CRES | Non-Locking | 7/16 - 14 | 5/8 - 11 | 0.625 | — | 0.1 | 217-072599 | |
| MS51831-105L | 217-077305 | 303 CRES | Self-Locking | 7/16 - 14 | 5/8 - 11 | 0.625 | 0.28 | 0.1 | 217-072599 | |
| MS51830-109 | 217-076325 | 303 CRES | Non-Locking | 7/16 - 14 | 9/16 - 12 | 0.562 | — | 0.07 | 217-072576 | |
| MS51830-109L | 217-077325 | 303 CRES | Self-Locking | 7/16 - 14 | 9/16 - 12 | 0.562 | 0.27 | 0.07 | 217-072576 | |
| MS51832-105 | 217-076337 | 303 CRES | Non-Locking | 7/16 - 14 | 11/16 - 11 NS | 0.625 | — | 0.1 | 217-072636 | |
| MS51832-105L | 217-077337 | 303 CRES | Self-Locking | 7/16 - 14 | 11/16 - 11 NS | 0.625 | 0.28 | 0.1 | 217-072636 | |
| MS51830-205 | 217-076525 | 303 CRES | Non-Locking | 7/16 - 20 | 9/16 - 12 | 0.562 | — | 0.07 | 217-072577 | |
| NAS1394C7 | 217-076525 | 303 CRES | Non-Locking | 7/16 - 20 | 9/16 - 12 | 0.562 | — | 0.07 | 217-072577 | |
| NAS1394C7L | 217-077525 | 303 CRES | Self-Locking | 7/16 - 20 | 9/16 - 12 | 0.562 | 0.27 | 0.07 | 217-072577 | |
| MS51830-205L | 217-077525 | 303 CRES | Self-Locking | 7/16 - 20 | 9/16 - 12 | 0.562 | 0.27 | 0.07 | 217-072577 | |
| MS51831-205 | 217-076505 | 303 CRES | Non-Locking | 7/16 - 20 | 5/8 - 11 | 0.625 | — | 0.1 | 217-072600 | |
| NAS1395C7 | 217-076505 | 303 CRES | Non-Locking | 7/16 - 20 | 5/8 - 11 | 0.625 | — | 0.1 | 217-072600 | |
| MS51831-205L | 217-077505 | 303 CRES | Self-Locking | 7/16 - 20 | 5/8 - 11 | 0.625 | 0.28 | 0.1 | 217-072600 | |
| NAS1395C7L | 217-077505 | 303 CRES | Self-Locking | 7/16 - 20 | 5/8 - 11 | 0.625 | 0.28 | 0.1 | 217-072600 | |
| MS51832-205L | 217-077537 | 303 CRES | Self-Locking | 7/16 - 20 | 11/16 - 11 NS | 0.625 | 0.28 | 0.1 | 217-072637 | |
| MS51832-205 | 217-076537 | 303 CRES | Non-Locking | 7/16 - 20 | 11/16 - 11 NS | 0.625 | — | 0.1 | 217-072637 | |
| MS51830-110 | 217-076326 | 303 CRES | Non-Locking | 1/2 - 13 | 5/8 - 11 | 0.625 | — | 0.07 | 217-072578 | |
| MS51830-110L | 217-077326 | 303 CRES | Self-Locking | 1/2 - 13 | 5/8 - 11 | 0.625 | 0.28 | 0.07 | 217-072578 | |
| MS51831-106 | 217-076306 | 303 CRES | Non-Locking | 1/2 - 13 | 11/16 - 11 NS | 0.688 | — | 0.1 | 217-072601 | |
| MS51831-106L | 217-077306 | 303 CRES | Self-Locking | 1/2 - 13 | 11/16 - 11 NS | 0.688 | 0.28 | 0.1 | 217-072601 | |
| MS51832-106 | 217-076338 | 303 CRES | Non-Locking | 1/2 - 13 | 13/16 - 16 | 0.688 | — | 0.1 | 217-072638 | |
| MS51832-106L | 217-077338 | 303 CRES | Self-Locking | 1/2 - 13 | 13/16 - 16 | 0.688 | 0.28 | 0.1 | 217-072638 | |
| MS51830-206 | 217-076526 | 303 CRES | Non-Locking | 1/2 - 20 | 5/8 - 11 | 0.625 | — | 0.07 | 217-072579 | |
| NAS1394C8 | 217-076526 | 303 CRES | Non-Locking | 1/2 - 20 | 5/8 - 11 | 0.625 | — | 0.07 | 217-072579 | |
| NAS1394C8L | 217-077526 | 303 CRES | Self-Locking | 1/2 - 20 | 5/8 - 11 | 0.625 | 0.28 | 0.07 | 217-072579 | |
| MS51830-206L | 217-077526 | 303 CRES | Self-Locking | 1/2 - 20 | 5/8 - 11 | 0.625 | 0.28 | 0.07 | 217-072579 | |
| NAS1395C8 | 217-076506 | 303 CRES | Non-Locking | 1/2 - 20 | 11/16 - 11 NS | 0.688 | — | 0.1 | 217-072602 | |
| MS51831-206 | 217-076506 | 303 CRES | Non-Locking | 1/2 - 20 | 11/16 - 11 NS | 0.688 | — | 0.1 | 217-072602 | |
| MS51831-206L | 217-077506 | 303 CRES | Self-Locking | 1/2 - 20 | 11/16 - 11 NS | 0.688 | 0.28 | 0.1 | 217-072602 | |
| NA1395C8L | 217-077506 | 303 CRES | Self-Locking | 1/2 - 20 | 11/16 - 11 NS | 0.688 | 0.28 | 0.1 | 217-072602 | |
| MS51832-206 | 217-076538 | 303 CRES | Non-Locking | 1/2 - 20 | 13/16 - 16 | 0.688 | — | 0.1 | 217-072639 | |
| MS51832-206L | 217-077538 | 303 CRES | Self-Locking | 1/2 - 20 | 13/16 - 16 | 0.688 | 0.28 | 0.1 | 217-072639 | |
| MS51831-107 | 217-076307 | 303 CRES | Non-Locking | 9/16 - 12 | 13/16 - 16 | 0.812 | — | 0.1 | 217-072603 | |
| MS51831-107L | 217-077307 | 303 CRES | Self-Locking | 9/16 - 12 | 13/16 - 16 | 0.812 | 0.32 | 0.1 | 217-072603 | |
| MS51832-107 | 217-076339 | 303 CRES | Non-Locking | 9/16 - 12 | 7/8 - 14 | 0.812 | — | 0.1 | 217-072640 | |
| MS51832-107L | 217-077339 | 303 CRES | Self-Locking | 9/16 - 12 | 7/8 - 14 | 0.812 | 0.32 | 0.1 | 217-072640 | |
| NA1395C9 | 217-076507 | 303 CRES | Non-Locking | 9/16 - 18 | 13/16 - 16 | 0.812 | — | 0.1 | 217-072604 | |
| MS51831-207 | 217-076507 | 303 CRES | Non-Locking | 9/16 - 18 | 13/16 - 16 | 0.812 | — | 0.1 | 217-072604 | |
| NAS1395C9L | 217-077507 | 303 CRES | Self-Locking | 9/16 - 18 | 13/16 - 16 | 0.812 | 0.32 | 0.1 | 217-072604 | |
| MS51831-207L | 217-077507 | 303 CRES | Self-Locking | 9/16 - 18 | 13/16 - 16 | 0.812 | 0.32 | 0.1 | 217-072604 | |
| MS51832-207 | 217-076539 | 303 CRES | Non-Locking | 9/16 - 18 | 7/8 - 14 | 0.812 | — | 0.1 | 217-072641 | |
| MS51832-207L | 217-077539 | 303 CRES | Self-Locking | 9/16 - 18 | 7/8 - 14 | 0.812 | 0.32 | 0.1 | 217-072641 | |
| MS51831-108 | 217-076308 | 303 CRES | Non-Locking | 5/8 - 11 | 7/8 - 14 | 0.875 | — | 0.1 | 217-072605 | |
| MS51831-108L | 217-077308 | 303 CRES | Self-Locking | 5/8 - 11 | 7/8 - 14 | 0.875 | 0.33 | 0.1 | 217-072605 | |
| MS51832-108 | 217-076340 | 303 CRES | Non-Locking | 5/8 - 11 | 1 - 12 | 0.875 | — | 0.1 | 217-072642 | |
| MS51832-108L | 217-077340 | 303 CRES | Self-Locking | 5/8 - 11 | 1 - 12 | 0.875 | 0.33 | 0.1 | 217-072642 | |
| NAS1395C10 | 217-076508 | 303 CRES | Non-Locking | 5/8 - 18 | 7/8 - 14 | 0.875 | — | 0.1 | 217-072606 | |
| MS51831-208 | 217-076508 | 303 CRES | Non-Locking | 5/8 - 18 | 7/8 - 14 | 0.875 | — | 0.1 | 217-072606 | |
| NAS1395C10L | 217-077508 | 303 CRES | Self-Locking | 5/8 - 18 | 7/8 - 14 | 0.875 | 0.33 | 0.1 | 217-072606 | |
| MS51831-208L | 217-077508 | 303 CRES | Self-Locking | 5/8 - 18 | 7/8 - 14 | 0.875 | 0.33 | 0.1 | 217-072606 | |
| MS51832-208 | 217-076540 | 303 CRES | Non-Locking | 5/8 - 18 | 1 - 12 | 0.875 | — | 0.1 | 217-072643 | |
| MS51832-208L | 217-077540 | 303 CRES | Self-Locking | 5/8 - 18 | 1 - 12 | 0.875 | 0.33 | 0.1 | 217-072643 | |
| MS51832-109 | 217-076341 | 303 CRES | Non-Locking | 3/4 - 10 | 1-1/4 - 12 | 1.125 | — | 0.1 | 217-072644 | |
| MS51832-109L | 217-077341 | 303 CRES | Self-Locking | 3/4 - 10 | 1-1/4 - 12 | 1.25 | 0.49 | 0.1 | 217-072644 | |
| MS51831-109 | 217-076309 | 303 CRES | Non-Locking | 3/4 - 10 | 1-1/8 - 12 | 1.125 | — | 0.1 | 217-072607 | |
| MS51831-109L | 217-077309 | 303 CRES | Self-Locking | 3/4 - 10 | 1-1/8 - 12 | 1.250 | 0.49 | 0.1 | 217-072607 | |
| MS51831-209 | 217-076509 | 303 CRES | Non-Locking | 3/4 - 16 | 1-1/8 - 12 | 1.125 | — | 0.1 | 217-072608 | |
| MS51831-209L | 217-077509 | 303 CRES | Self-Locking | 3/4 - 16 | 1-1/8 - 12 | 1.250 | 0.49 | 0.1 | 217-072607 | |
| MS51832-209 | 217-076541 | 303 CRES | Non-Locking | 3/4 - 16 | 1-1/4 - 12 | 1.125 | — | 0.1 | 217-072645 | |
| MS51832-209L | 217-077541 | 303 CRES | Self-Locking | 3/4 - 16 | 1-1/4 - 12 | 1.25 | 0.49 | 0.1 | 217-072645 | |
| MS51831-110 | 217-076310 | 303 CRES | Non-Locking | 7/8 - 9 | 1-1/4 - 12 | 1.25 | — | 0.1 | 217-072609 | |
| MS51832-110 | 217-076342 | 303 CRES | Non-Locking | 7/8 - 9 | 1-3/8 - 12 | 1.25 | — | 0.1 | 217-072645 | |
| MS51832-210L | 217-077542 | 303 CRES | Self-Locking | 7/8 - 9 | 1-3/8 - 12 | 1.375 | 0.49 | 0.1 | 217-072647 | |
| MS51832-110L | 217-077342 | 303 CRES | Self-Locking | 7/8 - 9 | 1-3/8 - 12 | 1.375 | 0.49 | 0.1 | 217-072646 | |
| MS51831-210 | 217-076510 | 303 CRES | Non-Locking | 7/8 - 14 | 1-1/4 - 12 | 1.25 | — | 0.1 | 217-072610 | |
| MS51832-210 | 217-076542 | 303 CRES | Non-Locking | 7/8 - 14 | 1-3/8 - 12 | 1.25 | — | 0.1 | 217-072646 | |
| MS51831-111 | 217-076311 | 303 CRES | Non-Locking | 1 - 8 | 1-3/8 - 12 | 1.375 | — | 0.1 | 217-072611 | |
| MS51831-111L | 217-077311 | 303 CRES | Self-Locking | 1 - 8 | 1-3/8 - 12 | 1.5 | 0.55 | 0.1 | 217-072611 | |
| MS51832-111 | 217-076343 | 303 CRES | Non-Locking | 1 - 8 | 1-1/2 - 12 | 1.375 | — | 0.1 | 217-072648 | |
| MS51832-111L | 217-077343 | 303 CRES | Self-Locking | 1 - 8 | 1-1/2 - 12 | 1.5 | 0.55 | 0.1 | 217-072648 | |
| MS51831-211L | 217-077511 | 303 CRES | Self-Locking | 1 - 12 | 1-3/8 - 12 | 1.5 | 0.55 | 0.1 | 217-072612 | |
| MS51831-211 | 217-076511 | 303 CRES | Non-Locking | 1 - 12 | 1-3/8 - 12 | 1.375 | — | 0.1 | 217-072612 | |
| MS51832-211 | 217-076543 | 303 CRES | Non-Locking | 1 - 12 | 1-1/2 - 12 | 1.375 | — | 0.1 | 217-072648 | |
| MS51832-211L | 217-077543 | 303 CRES | Self-Locking | 1 - 12 | 1-1/2 - 12 | 1.5 | 0.55 | 0.1 | 217-072649 | |
| — | 217-076382 | 303 CRES | Non-Locking | M2 x 0.4 | M4 x 0.7 | 2.20 mm | 3.00 mm | — | — | 217-072682 |
| — | 217-077382 | 303 CRES | Self-Locking | M2 x 0.4 | M4 x 0.7 | 2.20 mm | 3.00 mm | — | — | 217-072682 |
| — | 217-076383 | 303 CRES | Non-Locking | M2.5 x 0.45 | M4.5 x 0.75 | 2.70 mm | 3.81 mm | — | — | 217-072683 |
| — | 217-077383 | 303 CRES | Self-Locking | M2.5 x 0.45 | M4.5 x 0.75 | 2.70 mm | 3.81 mm | — | — | 217-072683 |
| — | 217-076384 | 303 CRES | Non-Locking | M3 x 0.5 | M5 x 0.8 | 3.10 mm | 4.25 mm | — | — | 217-072684 |
| — | 217-077384 | 303 CRES | Self-Locking | M3 x 0.5 | M5 x 0.8 | 3.10 mm | 4.25 mm | — | — | 217-072684 |
| — | 217-076386 | 303 CRES | Non-Locking | M4 x 0.7 | M6 x 0.75 | 4.11 mm | 5.25 mm | — | — | 217-072686 |
| — | 217-077386 | 303 CRES | Self-Locking | M4 x 0.7 | M6 x 0.75 | 4.11 mm | 5.25 mm | — | — | 217-072686 |
| — | 217-076363 | 303 CRES | Non-Locking | M4 x 0.7 | M8 x 1.25 | 8 | — | 1.27 | 217-072663 | |
| — | 217-077363 | 303 CRES | Self-Locking | M4 x 0.7 | M8 x 1.25 | 8 | 5 | 1.27 | 217-072663 | |
| — | 217-076351 | 303 CRES | Non-Locking | M5 x 0.8 | M8 x 1.25 | 8 mm | — | 1.27 | 217-072651 | |
| — | 217-077351 | 303 CRES | Self-Locking | M5 x 0.8 | M8 x 1.25 | 8 mm | 3.73 | 1.27 | 217-072651 | |
| — | 217-076364 | 303 CRES | Non-Locking | M5 x 0.8 | M10 x 1.25 | 10 | — | 1.27 | 217-072664 | |
| — | 217-077364 | 303 CRES | Self-Locking | M5 x 0.8 | M10 x 1.25 | 10 | 5.5 | 1.27 | 217-072664 | |
| — | 217-076551 | 303 CRES | Non-Locking | M5 x 0.5 | M8 x 1.25 | 8 mm | — | 1.27 | 217-072651 | |
| — | 217-077551 | 303 CRES | Self-Locking | M5 x 0.5 | M8 x 1.25 | 8 mm | 3.73 | 1.27 | 217-072651 | |
| — | 217-076352 | 303 CRES | Non-Locking | M6 x 1.0 | M10 x 1.25 | 10 mm | — | 1.78 | 217-072652 | |
| — | 217-077352 | 303 CRES | Self-Locking | M6 x 1.0 | M10 x 1.25 | 10 | 6.02 | 1.78 | 217-072652 | |
| — | 217-076365 | 303 CRES | Non-Locking | M6 x 1.0 | M12 x 1.25 | 12 | — | 1.78 | 217-072665 | |
| — | 217-077365 | 303 CRES | Self-Locking | M6 x 1.0 | M12 x 1.25 | 12 | 6.46 | 1.78 | 217-072665 | |
| — | 217-076552 | 303 CRES | Non-Locking | M6 x 0.75 | M10 x 1.25 | 10 mm | — | 1.78 | 217-072652 | |
| — | 217-077552 | 303 CRES | Self-Locking | M6 x 0.75 | M10 x 1.25 | 10 | 6.02 | 1.78 | 217-072652 | |
| — | 217-076353 | 303 CRES | Non-Locking | M8 x 1.25 | M12 x 1.25 | 12 mm | — | 1.78 | 217-072653 | |
| — | 217-077353 | 303 CRES | Self-Locking | M8 x 1.25 | M12 x 1.25 | 12 | 6.28 | 1.78 | 217-072663 | |
| — | 217-077366 | 303 CRES | Self-Locking | M8 x 1.25 | M14 x 1.5 | 14 | 6.46 | 1.78 | 217-072666 | |
| — | 217-076366 | 303 CRES | Non-Locking | M8 x 1.25 | M14 x 1.5 | 14 | — | 1.78 | 217-072666 | |
| — | 217-076553 | 303 CRES | Non-Locking | M8 x 1.0 | M12 x 1.25 | 12 | — | 1.78 | 217-072663 | |
| — | 217-077553 | 303 CRES | Self-Locking | M8 x 1.0 | M12 x 1.25 | 12 | 6.28 | 1.78 | 217-072663 | |
| — | 217-076566 | 303 CRES | Non-Locking | M8 x 1.0 | M14 x 1.5 | 14 | — | 1.78 | 217-072666 | |
| — | 217-077566 | 303 CRES | Self-Locking | M8 x 1.0 | M14 x 1.5 | 14 | 6.46 | 1.78 | 217-072666 | |
| — | 217-076355 | 303 CRES | Non-Locking | M10 x 1.5 | M14 x 1.5 | 14 | — | 2.29 | 217-072665 | |
| — | 217-077355 | 303 CRES | Self-Locking | M10 x 1.5 | M14 x 1.5 | 14 | 6.46 | 2.29 | 217-072665 | |
| — | 217-076367 | 303 CRES | Non-Locking | M10 x 1.5 | M16 x 1.5 | 16 | — | 2.29 | 217-072667 | |
| — | 217-077367 | 303 CRES | Self-Locking | M10 x 1.5 | M16 x 1.5 | 16 | 6.46 | 2.29 | 217-072667 | |
| — | 217-076555 | 303 CRES | Non-Locking | M10 x 1.25 | M14 x 1.5 | 14 | — | 2.29 | 217-072665 | |
| — | 217-077555 | 303 CRES | Self-Locking | M10 x 1.25 | M14 x 1.5 | 14 | 6.46 | 2.29 | 217-072665 | |
| — | 217-076567 | 303 CRES | Non-Locking | M10 x 1.25 | M16 x 1.5 | 16 | — | 2.29 | 217-072667 | |
| — | 217-077567 | 303 CRES | Self-Locking | M10 x 1.25 | M16 x 1.5 | 16 | 6.46 | 2.29 | 217-072667 | |
| — | 217-076356 | 303 CRES | Non-Locking | M12 x 1.75 | M16 x 1.5 | 16 | — | 2.29 | 217-072666 | |
| — | 217-077356 | 303 CRES | Self-Locking | M12 x 1.75 | M16 x 1.5 | 16 | 6.46 | 2.29 | 217-072666 | |
| — | 217-076369 | 303 CRES | Non-Locking | M12 x 1.75 | M18 x 1.5 | 18 | — | 2.29 | 217-072669 | |
| — | 217-077369 | 303 CRES | Self-Locking | M12 x 1.75 | M18 x 1.5 | 18 | 7.23 | 2.29 | 217-072669 | |
| — | 217-076556 | 303 CRES | Non-Locking | M12 x 1.25 | M16 x 1.5 | 16 | — | 2.29 | 217-072666 | |
| — | 217-077556 | 303 CRES | Self-Locking | M12 x 1.25 | M16 x 1.5 | 16 | 6.46 | 2.29 | 217-072666 | |
| — | 217-076569 | 303 CRES | Non-Locking | M12 x 1.25 | M18 x 1.5 | 18 | — | 2.29 | 217-072669 | |
| — | 217-077569 | 303 CRES | Self-Locking | M12 x 1.25 | M18 x 1.5 | 18 | — | 2.29 | 217-072669 | |
| — | 217-076370 | 303 CRES | Non-Locking | M14 x 2.0 | M20 x 1.5 | 20 | — | 2.79 | 217-072670 | |
| — | 217-077370 | 303 CRES | Self-Locking | M14 x 2.0 | M20 x 1.5 | 20 | 7.73 | 2.79 | 217-072670 | |
| — | 217-076570 | 303 CRES | Non-Locking | M14 x 1.5 | M20 x 1.5 | 20 | — | 2.79 | 217-072670 | |
| — | 217-077570 | 303 CRES | Self-Locking | M14 x 1.5 | M20 x 1.5 | 20 | 7.73 | 2.79 | 217-072670 | |
| — | 217-076371 | 303 CRES | Non-Locking | M16 x 2.0 | M22 x 1.5 | 22 | — | 2.79 | 217-072671 | |
| — | 217-077371 | 303 CRES | Self-Locking | M16 x 2.0 | M22 x 1.5 | 22 | 8.5 | 2.79 | 217-072671 | |
| — | 217-076571 | 303 CRES | Non-Locking | M16 x 1.5 | M22 x 1.5 | 22 | — | 2.79 | 217-072671 | |
| — | 217-077571 | 303 CRES | Self-Locking | M16 x 1.5 | M22 x 1.5 | 22 | 8.5 | 2.79 | 217-072671 | |
| — | 217-076572 | 303 CRES | Non-Locking | M18 x 1.5 | M24 x 2.0 | 24 | — | 2.79 | 217-072672 | |
| — | 217-077572 | 303 CRES | Self-Locking | M18 x 1.5 | M24 x 2.0 | 24 | 9.25 | 2.79 | 217-072672 | |
| — | 217-076373 | 303 CRES | Non-Locking | M20 x 2.5 | M30 x 2.0 | 30 | — | 2.79 | 217-072673 | |
| — | 217-077373 | 303 CRES | Self-Locking | M20 x 2.5 | M30 x 2.0 | 30 | 12.51 | 2.79 | 217-072673 | |
| — | 217-076573 | 303 CRES | Non-Locking | M20 x 1.5 | M30 x 2.0 | 30 | — | 2.79 | 217-072673 | |
| — | 217-077573 | 303 CRES | Self-Locking | M20 x 1.5 | M30 x 2.0 | 30 | 12.51 | 2.79 | 217-072673 | |
| — | 217-076574 | 303 CRES | Non-Locking | M22 x 1.5 | M33 x 2.0 | 32 | — | 2.79 | 217-072674 | |
| — | 217-077574 | 303 CRES | Self-Locking | M22 x 1.5 | M33 x 2.0 | 32 | 12.51 | 2.79 | 217-072674 | |
| — | 217-076375 | 303 CRES | Non-Locking | M24 x 3.0 | M33 x 2.0 | 33 | — | 3.81 | 217-072675 | |
| — | 217-077375 | 303 CRES | Self-Locking | M24 x 3.0 | M33 x 2.0 | 33 | 13.97 | 3.81 | 217-072675 | |
| — | 217-076575 | 303 CRES | Non-Locking | M24 x 2.0 | M33 x 2.0 | 33 | — | 3.81 | 217-072675 | |
| — | 217-077575 | 303 CRES | Self-Locking | M24 x 2.0 | M33 x 2.0 | 33 | 13.97 | 3.81 | 217-072675 |
Trademarks are the properties of their respective owner(s).