bolts › close tolerance bolts
NAS1580A5R24
Bolt
Description
Fastener Length: 1-63/64", Thread: 5/16-24, Thread Length: 1/2"
Specifications
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum |
|---|---|
| Fastener Length | 1.986 inches minimum and 2.016 inches maximum |
| Grip Diameter | 0.3110 inches minimum and 0.3120 inches maximum |
| Grip Length | 1.490 inches minimum and 1.510 inches maximum |
| Head Diameter | 0.578 inches minimum and 0.634 inches maximum |
| Head Style | Flat countersunk |
| Internal Drive Style | Offset cruciform (torque set) |
| Length | 1 63/64 |
| Material | Steel |
| Material Specification | Mil-s-5652 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| Surface Treatment | Chromate and cadmium |
| Surface Treatment Specification | Qq-p-416, ty 2, cl 2 fed spec all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.325 |
| Thread Direction | Right-hand |
| Thread Length | 0.501 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 5/16 |
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 NAS1580A5R24. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error