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AN316-4L
Aeronautical Standard Plain Hexagon Nut
Description
Jam Nut
Specifications
| Approximate Dimension B | 1/2 in |
|---|---|
| Bearing Surface Type | Chamfered |
| Countersink Angle | 110.0 degrees nominal nut |
| Dimension A | 0.438 in |
| Dimension A Tolerance | +0.002 in |
| Dimension H | 1/8 in |
| Finish | Cadmium Plate |
| Hardness Rating | 80.0 rockwell b minimum and 32.0 rockwell c maximum |
| Industry Standards/Certification | AN316 |
| Material | Steel |
| NIIN | 00-167-1295 |
| NSN | 5310-00-167-1295 |
| Nondefinitive Specification/Std Data | 2 type and a grade |
| Nut Height | 0.125 |
| Nut Style | Hexagon |
| Pre-Packaged Bag Quantity | 50 |
| Shape | Hexagon |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response |
| Tensile Strength | 2040 lb |
| Thread Class | 3b |
| Thread Direction | Left-hand |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNF |
| Thread Size | 0.250, 1/4-28 |
| Thread T | 1/4-28 |
| Type | Jam |
| Weight | 0.01 lb |
| Width Across Flats | 0.428 inches minimum and 0.440 inches maximum |
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.
- A103ETL Other 1/4-28 · Steel
- NAS1423-4LH NAS 1/4-28 · Steel
- NAS1423C4 NAS 1/4-28 · Iron
- AN316-4R AN 1/4-28 · Steel
- AN316C4R AN 1/4-28 · CRES
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Catalog data updated 2026-07-05. Report a data error