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MS51972-2
Military Standard Plain Hexagon Nut
Description
MS 51972-2 Plain Hexagon Nut - Finished Pattern
Specifications
| Bearing Surface Type | Chamfered or washer faced |
|---|---|
| Hexagon Size - Across Flats | 1/2 |
| Hexagon Size - Thick | 17/64 |
| Material | CRES |
| Material Specification | 66 fed std all material responses |
| Nondefinitive Specification/Std Data | 2 type and 4 style and a condition |
| Nut Height | 0.258 inches minimum and 0.273 inches maximum |
| Nut Style | Hexagon |
| Part Name Assigned By Controlling Agency | Nut, plain, hexagon |
| Size | 5/16-24 |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Thread Class | 2b |
| Thread Direction | Right-hand |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series | UNF |
| Thread Size | 0.312 |
| Width Across Flats | 0.489 inches minimum and 0.500 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.
- MS51968-5 MS 5/16-24 · Steel
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Catalog data updated 2026-07-05. Report a data error