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NAS6203-21
Close Tolerance Bolt
Description
Close Tolerance Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drilling | Undrilled Head |
| Fastener Length | Between 1.620 inches and 1.650 inches |
| Grip | 1.312 in, 1.313 |
| Grip Diameter | Between 0.1885 inches and 0.1895 inches |
| Grip Length | Between 1.302 inches and 1.322 inches |
| Grip Tolerance | ±0.010 in |
| Hardness Rating | 36.0 rockwell c and 40.0 rockwell c |
| Head Height | Between 0.110 inches and 0.125 inches |
| Head Style | Dished hexagon |
| Head Type | Hexagon |
| Industry Standards/Certification | NAS6203 |
| Length | 1.635 in, 1.636 |
| Material | Steel |
| Material Specification | Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-073-2530 |
| NSN | 5306-01-073-2530 |
| Obsolete PN | NAS1103-21 |
| Specification Data | 80205-nas6203 professional/industrial association standard |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty2 cl2 federal specification single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.298 inches and 0.348 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 | 0.1900-32, 10 |
| Weight | .0015 lb |
| Width Between Flats | Between 0.367 inches and 0.376 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for NAS6203-21. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error