bolts › close tolerance bolts
NAS1953C21
Close Tolerance Bolt
Description
Fastener Length: 1-21/32", Thread: 10-32, Thread Length: 23/64", NAS1953 series bolt
Specifications
| Fastener Length | Between 1.635 inches and 1.665 inches |
|---|---|
| Grip Diameter | Between 0.1885 inches and 0.1895 inches |
| Grip Length | Between 1.302 inches and 1.322 inches |
| Head Height | Between 0.110 inches and 0.125 inches |
| Head Style | Dished hexagon |
| Material | Iron |
| Material Specification | Ams 5731 assn standard single material response or ams 5737 assn standard single material response |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| Specification Data | 80205-nas1953 professional/industrial association standard |
| Surface Finish | 32.0 microinches grip, 32.0 microinches surface of head, 32.0 microinches threads |
| Surface Treatment | Passivate |
| Surface Treatment Specification | Qq-p-35 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.313 inches and 0.363 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 10 |
| Width Between Flats | Between 0.367 inches and 0.376 inches |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
- NAS1953C1H
- NAS1953C2H
- NAS1953C4
- NAS1953C5
- NAS1953C7
- NAS1953C8
- NAS1953C11
- NAS1953C21
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS1953C21. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error