nuts › plain castellated hexagon nuts
AN310C3
Aeronautical Standard Plain Castellated Hexagon Nut
Description
Castellated Nut
Specifications
| Bearing Surface Type | Washer faced |
|---|---|
| Cotter Pin Size | AN380-2-2 |
| Countersink Angle | 109.0 degrees and 111.0 degrees |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| NIIN | 00-167-1279 |
| NSN | 5310-00-167-1279 |
| Nondefinitive Specification/Std Data | 5 type |
| Nut Height | Between 0.234 inches and 0.266 inches |
| Nut Style | Hexagon castellated |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.190, 10-32 |
| Type | Stainless Steel |
| Weight | .004 lb |
| Width Across Flats | Between 0.365 inches and 0.377 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.
- AN310-3 AN #10-32 · Steel
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Catalog data updated 2026-07-05. Report a data error