nuts › plain hexagon nuts
MS9881-11
Military Standard Nut
Description
Thread Size: 1/4", Nut Height: 1/4", Head Width: 1/2"
Specifications
| Bearing Surface Finish | 63.0 microinches |
|---|---|
| Bearing Surface Type | Washer faced |
| Countersink Angle | 90.0 degrees nominal nut |
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Material | Steel |
| Material Specification | Ams 6322 assn std single material response |
| Nut Height | 0.266 |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Ams 2400 assn std single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNJF |
| Thread Size | 0.312 |
| Width Across Flats | 0.492 inches minimum and 0.502 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.
- MS9882-11 MS 5/16-24 · Steel
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Catalog data updated 2026-07-05. Report a data error