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NAS1297-4D13
Shoulder Bolt
Description
Fastener Length: 1-19/64", Thread: 1/4-28, Thread Length: 7/16", NAS1297 series bolt
Specifications
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.097 inches first hole |
|---|---|
| Fastener Length | Between 1.265 inches and 1.305 inches |
| Head Height | Between 0.172 inches and 0.204 inches |
| Head Style | Hexagon Head |
| Material | Steel |
| Material Specification | Mil-s-6050 military specification 1st material response or mil-s-6098 military specification 2nd material response or mil-s-6758 military specification 3rd material response or ams 6300 assn standard 4th material response or mil-s-5626 military specification 5th material response |
| Shank Unthreaded Hole Diameter | 0.076 inches first hole |
| Shoulder Diameter | 0.309 inches first shoulder and 0.312 inches first shoulder |
| Shoulder Length | 0.822 inches first shoulder |
| Shoulder Shape | Round first shoulder |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Cl 1 federal specification single treatment response ty ii qq-p-416 |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.453 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Width Between Flats | Between 0.490 inches and 0.502 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1297-4D13
- NAS1297-4D15
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1297-4D13. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error