bolts › close tolerance bolts
NAS8603-1
Close Tolerance Bolt
Description
Close Tolerance Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Drive Style | Phillips |
| Fastener Length | 0.385 |
| Grip | 0.062 in |
| Grip Length | 0.062 |
| Head Angle | 100 º |
| Head Diameter | 0.266 inches minimum and 0.303 inches maximum |
| Head Style | Flat countersunk |
| Head Type | Countersunk Reduced |
| Industry Standards/Certification | NAS8603 |
| Length | 0.385 in, 3/8 |
| Material | Steel |
| Material Specification | Mil-s-6049 mil spec 1st material response and ams6322 assn std 2nd material response and mil-s-6049 mil spec 2nd material response |
| Part Name Assigned By Controlling Agency | Bolt, 100degree reduced head, phillips recess, close tolerance, alloy steel, short thread |
| Shear Strength | 95 ksi |
| Specification Data | 80205-nas8603 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 fed spec all treatment responses |
| Tensile Strength | 160 ksi |
| Thread Class | Aal |
| Thread Direction | Right-hand |
| Thread Length | 0.323 |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 0.1900-32 |
| Thread Type | Short Thread |
| Weight | 0.0025 lb |
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 NAS8603-1. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error