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MS21045L4E
Military Standard Locknut
Description
Thread: 1/4-28, Thread Size: 1/4", Nut Height: 7/64", Head Width: 27/64
Specifications
| Locking Feature | Prevailing torque all metal design |
|---|---|
| Lubrication | Dry film lubricant |
| Material | Steel |
| Nut Height | 0.116 |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 federal specification single treatment response |
| Temperature Rating | 450 degrees fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.250 |
| Width Across Flats | Between 0.430 inches and 0.439 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21045L4E
- MS21045L9
- MS21045L10
- MS21045L12
- MS21045L14
- MS21045L18
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21045L4E. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error