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MS21044C6
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 | CRES |
| Material Specification | Ams 5688 assn std 1st material response or ams 5630 assn std 2nd material response or ams 5647 assn std 3rd material response nut |
| NIIN | 00-857-4959 |
| NSN | 5310-00-857-4959 |
| Nut Height | 0.318 inches minimum and 0.469 inches maximum |
| Nut Style | Hexagon |
| Surface Treatment | Passivate except insert |
| Surface Treatment Specification | Qq-p-35 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 |
| Weight | 0.018 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.
- 22FH624 Commercial 3/8-24 · Steel
- MS20500-624 MS 3/8-24 · CRES
- MS21044B6 MS 3/8-24 · Copper
- MS21044N6 MS 3/8-24 · Steel
- MS21045-6 MS 3/8-24 · Steel
- MS21045-6S MS 3/8-24 · Steel
- MS21045C06 MS 3/8-24 · CRES
- MS21045C6 MS 3/8-24 · CRES
- MS21046C6E MS 3/8-24 · Steel
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Catalog data updated 2026-07-05. Report a data error