nuts › plain castellated hexagon nuts
AN310C12
Aeronautical Standard Plain Castellated Hexagon Nut
Description
Thread Size: 3/4", Nut Height: 7/8", Head Width: 1-1/8", AN310 series nut
Specifications
| Bearing Surface Type | Washer faced |
|---|---|
| Countersink Angle | 109.0 degrees nut and 111.0 degrees nut |
| Material | CRES |
| Nut Height | Between 0.797 inches and 0.828 inches |
| Nut Style | Hexagon castellated |
| Surface Treatment | Passivate |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 16 |
| Thread Qty Per Inch (tpi) | 16 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.750 |
| Width Across Flats | Between 1.109 inches and 1.127 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.
- AN310-12 AN 3/4-16 · Steel
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Catalog data updated 2026-07-05. Report a data error