nuts › locknuts
MS21083B6
Military Standard Locknut
Description
Thread Size: 3/8", Nut Height: 9/32", Head Width: 35/64"
Specifications
| Bearing Surface Finish | 125.0 microinches |
|---|---|
| Bearing Surface Type | Chamfered or washer faced |
| Countersink Angle | 88.0 degrees nominal nut |
| Locking Feature | Prevailing torque with nonmetallic insert |
| Material | Copper |
| Nut Height | 0.282 inches maximum |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium except insert |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response except insert |
| Temperature Rating | 250.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Size | 0.375 |
| Width Across Flats | 0.553 inches minimum and 0.564 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21083B4
- MS21083B06
- MS21083B6
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21083B6. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error