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NAS501-4-5A
Machine Bolt
Description
Fastener Length: 11/16", Thread: 1/4-28, Thread Length: 1/2", NAS501 series bolt
Specifications
| Fastener Length | 0.641 inches minimum and 0.688 inches maximum |
|---|---|
| Head Height | 0.140 inches minimum and 0.172 inches maximum |
| Head Style | Hexagon Head |
| Length | 11/16 |
| Material | CRES |
| Material Specification | Qq-s-763 fed spec all material responses |
| Surface Treatment | Passivate |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.367 inches minimum and 0.512 inches maximum |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNF |
| Thread Size | 1/4 |
| Width Between 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
No interchangeable or dimensionally similar parts are on record for NAS501-4-5A. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error