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MS21083D6
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 nut |
| End Application | Adcap 48;aircraft mh-47e special operations aircraft;surface minesweeping systems;ah-64-d longbow intercept;aircraft black hawk (mh-60k special operations aircraft);torpedo oh-58d;f-22 raptor air dominance fighter;deck machinery;guided missile hc-130);ticonderoga class cg (47); helicopter observation (ahip) ec-130e mc-130h aircraft (ac-130h |
| Locking Feature | Prevailing torque with nonmetallic insert |
| Lubrication | Dry film lubricant |
| Material | Aluminum |
| NIIN | 00-926-1851 |
| NSN | 5310-00-926-1851 |
| Nut Height | 0.282 |
| Nut Style | Hexagon |
| Surface Treatment | Anodize except insert or chromate except insert |
| Surface Treatment Specification | Mil-a-8625 military specification 1st treatment response except insert or mil-c-5541 military specification 2nd treatment response except insert |
| Temperature Rating | 250.0 degrees fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | Unjf (fine thread with external controlled root radius) |
| Thread Size | 0.375 |
| Weight | 0.003 lb |
| Width Across Flats | Between 0.553 inches and 0.564 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- MS21083D3
- MS21083D4
- MS21083D5
- MS21083D06
- MS21083D6
- MS21083D08
- MS21083D14
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.
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Catalog data updated 2026-07-05. Report a data error