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MS21250-06044
Bolt
Description
Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Extended Washer Diameter | 0.639 inches minimum and 0.649 inches maximum |
| Extended Washer Thickness | 0.091 |
| Fastener Length | 3.395 |
| Grip Diameter | 0.3735 inches minimum and 0.3745 inches maximum |
| Grip Length | 2.740 inches minimum and 2.760 inches maximum |
| Hardness Rating | 39.0 rockwell c minimum and 43.0 rockwell c maximum |
| Head Height | 0.388 |
| Head Style | Double hexagon extended washer |
| Length | 3 25/64 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| NIIN | 01-334-4205 |
| NSN | 5306-01-334-4205 |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 ty 2 cl 2 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.375 |
| Thread Direction | Right-hand |
| Thread Length | 0.645 |
| Thread Qty | 24 |
| Thread Qty Per Inch (tpi) | 24 |
| Thread Series Designator | UNJF |
| Thread Size | 3/8 |
| Weight | 0.125 lb |
| Width Between Flats | 0.438 |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS626-44 NAS 3/8-24 · 0.099 in · Double hexagon extended washer · Steel
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Catalog data updated 2026-07-05. Report a data error