nuts › plain hexagon nuts
MS35691-55
Military Standard Plain Hexagon Nut
Description
Thread Size: 5/8", Nut Height: 3/8", Head Width: 15/16", MS35691 series nut
Specifications
| Bearing Surface Type | Chamfered or washer faced |
|---|---|
| Material | Steel |
| Material Specification | Qq-s-763 federal specification all material responses |
| Nut Height | Between 0.363 inches and 0.387 inches |
| Nut Style | Hexagon |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 2b |
| Thread Direction | Right-hand |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | Unc (coarse thread) |
| Thread Size | 0.625 |
| Width Across Flats | Between 0.9220 inches and 0.9375 inches |
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.
- MS35691-53 MS 5/8-18 · Steel
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Catalog data updated 2026-07-05. Report a data error