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MS21045L18
Military Standard Locknut
Description
Thread Size: 1-1/8", Nut Height: 1-17/64", Head Width: 1-39/64"
Specifications
| Bearing Surface Finish | 125.0 microinches |
|---|---|
| Bearing Surface Type | Chamfered or washer faced |
| Countersink Angle | 120.0 degrees nominal nut |
| Locking Feature | Prevailing torque all metal design |
| Lubrication | Dry film lubricant or soluble lubricant |
| Material | Steel |
| Nut Height | 1.266 inches maximum |
| Nut Style | Hexagon |
| Specification Data | 80205-nas1021 professional/industrial association standard |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416 fed spec single treatment response |
| Temperature Rating | 450.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 |
| Thread Series | UNF |
| Thread Size | 1.125 |
| Width Across Flats | 1.614 inches minimum and 1.627 inches maximum |
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 MS21045L18. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error