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MS21245L8
Military Standard Locking Hexagon Nut Self
Description
Self Locking Nut
Specifications
| Alternate Part Number | NAS1022A8 |
|---|---|
| Bearing Surface Finish | 125.0 microinches |
| Bearing Surface Type | Chamfered or washer faced |
| Hardness Rating | 46.0 rockwell c maximum |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant |
| Material | Steel |
| NIIN | 00-449-2378 |
| NSN | 5310-00-449-2378 |
| Nut Height | 0.328 inches maximum |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 1,cl 3 fed spec single treatment response |
| Temperature Rating | 450.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNJF |
| Thread Size | 0.500 |
| Weight | .005 lb |
| Width Across Flats | 0.741 inches minimum and 0.752 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21245L7
- MS21245L8
- MS21245L9
- MS21245L10
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS21245L8 — functionally equivalent.
- NAS1022A8 Listed alternate 1/2-20 · Steel
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error