nuts › plain hexagon nuts
NAS509L7C
Plain Hexagon Nut
Description
Thread Size: 3/8", Nut Height: 1/4", Head Width: 5/8
Specifications
| Bearing Surface Finish | 125.0 microinches |
|---|---|
| Bearing Surface Type | Chamfered |
| Material | Iron |
| Nut Height | 0.271 inches minimum and 0.291 inches maximum |
| Nut Style | Hexagon |
| Thread Class | 3b |
| Thread Direction | Left-hand |
| Thread Qty | 20 |
| Thread Qty Per Inch (tpi) | 20 |
| Thread Series | UNJF |
| Thread Size | 0.437 |
| Width Across Flats | 0.615 inches minimum and 0.627 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.
- NAS509-7C NAS 7/16-20 · CRES
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Catalog data updated 2026-07-05. Report a data error