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MS21250-04006
Bolt
Description
Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Extended Washer Diameter | Between 0.428 inches and 0.438 inches |
| Extended Washer Thickness | 0.069 |
| Fastener Length | 0.887 |
| Grip Diameter | Between 0.2485 inches and 0.2495 inches |
| Grip Length | Between 0.365 inches and 0.385 inches |
| Hardness Rating | 39.0 rockwell c and 43.0 rockwell c |
| Head Height | 0.300 |
| Head Style | Double hexagon with hole |
| Length | 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 180000 pounds per square inch |
| NIIN | 00-091-3877 |
| NSN | 5306-00-091-3877 |
| Surface Treatment | Cadmium and chromate |
| Surface Treatment Specification | Qq-p-416 type 2 cl 2 federal specification all treatment responses |
| Thread Class | 3a |
| Thread Diameter | 0.250 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.502 inches and 0.522 inches |
| Thread Qty | 28 |
| Thread Qty Per Inch (tpi) | 28 |
| Thread Series | UNJF |
| Thread Series Designator | Unjf (fine thread with external controlled root radius) |
| Thread Size | 1/4 |
| Weight | .005 lb |
| Width Between Flats | Between 0.304 inches and 0.313 inches |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS21250-04006. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error