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MS21044D6
Military Standard Locking Hexagon Nut Self
Description
Nut
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 |
| Lubrication | Soluble lubricant |
| Material | Aluminum |
| Material Specification | Qq-a-200/2,t6 fed spec 1st material response nut or qq-a-225/5,t4 fed spec 2nd material response nut or qq-a-225/6,t6 fed spec 3rd material response nut or qq-a-200/11,t6 fed spec 4th material response nut |
| NIIN | 00-857-4957 |
| NSN | 5310-00-857-4957 |
| Nut Height | 0.318 nominal mils and 0.469 nominal centimeters |
| Nut Style | Hexagon |
| Surface Treatment | Anodize except insert |
| Surface Treatment Specification | Mil-a-8625 mil 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 |
| Weight | 0.0065 lb |
| 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.
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS21045L6 MS 3/8-24 · Steel
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Catalog data updated 2026-07-05. Report a data error