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NAS6203-21D
Close Tolerance Bolt-Drilled Shank
Description
Close Tolerance Bolt-Drilled Shank
Specifications
| Alternate Part Number | NAS464P3-21 |
|---|---|
| Country of Origin | USA |
| Distance From Head Largest Bearing Surface To Shank Hole Center | 1.446 inches minimum first hole and 1.496 inches maximum first hole |
| Drilling | Drilled Head |
| Fastener Length | 1.620 inches minimum and 1.650 inches maximum |
| Grip | 1.312 in, 1.313 |
| Grip Diameter | 0.1885 inches minimum and 0.1895 inches maximum |
| Grip Length | 1.302 inches minimum and 1.322 inches maximum |
| Grip Tolerance | ±0.010 in |
| Hardness Rating | 36.0 rockwell c minimum and 40.0 rockwell c maximum |
| Head Height | 0.110 inches minimum and 0.125 inches maximum |
| Head Style | Dished hexagon |
| Head Type | Hexagon |
| Industry Standards/Certification | NAS6203 |
| Length | 1 41/64, 1.635 in, 1.636 |
| Material | Steel |
| Material Specification | Mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response |
| Min. Tensile Strength (psi) | 160000 pounds per square inch |
| NIIN | 01-131-2177 |
| NSN | 5306-01-131-2177 |
| Obsolete PN | NAS1103-21 |
| Shank Unthreaded Hole Diameter | 0.060 inches minimum first hole and 0.080 inches maximum first hole |
| 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 type 2 class 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.298 inches minimum and 0.348 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 0.1900-32, 10 |
| Weight | .0015 lb |
| Width Between Flats | 0.367 inches minimum and 0.376 inches maximum |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS6203-21D — functionally equivalent.
- NAS464P3-21 Listed alternate #10-32 · 0.073 in · Hexagon Head · Steel
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Catalog data updated 2026-07-05. Report a data error