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MS51971-4
Military Standard Plain Hexagon Nut
Description
MS 51971-4 Plain Hexagon Nut - Finished Pattern
Specifications
| Bearing Surface Type | Chamfered or washer faced |
|---|---|
| Departure From Cited Designator | As modified by material |
| Hexagon Size - Across Flats | 11/16 |
| Hexagon Size - Thick | 3/8 |
| Material | CRES |
| Material Specification | Qq-s-763 fed spec single material response |
| Nut Height | 0.365 inches minimum and 0.385 inches maximum |
| Nut Style | Hexagon |
| Size | 7/16-14 |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 2b |
| Thread Direction | Right-hand |
| Thread Qty Per Inch (tpi) | 14 |
| Thread Series | UNC |
| Thread Size | 0.438 |
| Width Across Flats | 0.6750 inches minimum and 0.6875 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.
- MS51967-11 MS 7/16-14 · Steel
- MS51967-12 MS 7/16-14 · Steel
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Catalog data updated 2026-07-05. Report a data error