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AN315-4R
Aeronautical Standard Plain Hexagon Nut
Description
Plain Nut
Specifications
| Alternate Part Number | AN315-4 |
|---|---|
| Approximate Dimension B | 1/2 in |
| Bearing Surface Finish | 125 microinches |
| Bearing Surface Type | Chamfered or washer faced |
| Dimension A | 0.438 in |
| Dimension A Tolerance | +0.002 in |
| Dimension H | 3/16 in |
| Industry Standards/Certification | AN315 |
| Material | Steel |
| NIIN | 00-167-1344 |
| NSN | 5310-00-167-1344 |
| Nut Height | Between 0.172 inches and 0.204 inches |
| Nut Style | Hexagon |
| Shape | Hexagon |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Cl 3 federal specification single treatment response type 2 qq-p-416 |
| Tensile Strength | 4080 lb |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | Unf (fine thread) |
| Thread Size | 0.25, 1/4-28 |
| Type | Plain |
| Weight | 0.0063 lb |
| Width Across Flats | Between 0.428 inches and 0.440 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
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Catalog data updated 2026-07-05. Report a data error