nuts › plain hexagon nuts
AN315-640R
Aeronautical Standard Plain Hexagon Nut
Description
Plain Nut
Specifications
| Bearing Surface Type | Washer faced |
|---|---|
| Countersink Angle | 110.0 degrees nut |
| Material | Steel |
| NIIN | 00-167-1342 |
| NSN | 5310-00-167-1342 |
| Nondefinitive Specification/Std Data | 2 type |
| Nut Height | 0.109 |
| Nut Style | Hexagon |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Cl 3 federal specification single treatment response type 2 qq-p-416 |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 40 |
| Thread Qty Per Inch (tpi) | 40 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.138, 6-40 |
| Weight | .005 lb |
| Width Across Flats | Between 0.303 inches and 0.315 inches |
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.
- MS35650-362 MS #6-40 · Steel
- MS35650-364 MS #6-40 · CRES
- MS35650-365B MS #6-40 · Brass
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Catalog data updated 2026-07-05. Report a data error