bolts › close tolerance bolts
NAS1578A4T22
Bolt
Description
Fastener Length: 1-25/32", Thread: 1/4-28, Thread Length: 3/8"
Specifications
| Fastener Length | 1.763 inches minimum and 1.793 inches maximum |
|---|---|
| Grip Diameter | 0.248 inches minimum and 0.249 inches maximum |
| Grip Length | 1.365 inches minimum and 1.385 inches maximum |
| Head Diameter | 0.477 inches minimum and 0.492 inches maximum |
| Head Height | 0.140 inches minimum and 0.150 inches maximum |
| Head Style | Pan no. 2 |
| Length | 1 25/32 |
| Material | Steel |
| Material Specification | Mil-s-5626 mil spec 1st material response and ams6415 assn std 2nd material response and mil-s-5000 mil spec 3rd material response and mil-s-6049 mil spec 4th material response |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Q-p-416, type ii, class 2 fed spec 13th treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | 0.403 |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series Designator | UNJF |
| Thread Size | 1/4 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1578A4T3
- NAS1578A4T4
- NAS1578A4T7
- NAS1578A4T11
- NAS1578A4T20
- NAS1578A4T22
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1578A4T22. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error