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MS9556-13
12 Point Machine Bolt
Description
12 Point Machine Bolt
Specifications
| Country of Origin | USA |
|---|---|
| Extended Washer Diameter | 0.375 |
| Extended Washer Thickness | 0.040 inches minimum and 0.050 inches maximum |
| Fastener Length | 0.938 |
| Features | Extended Washer Head |
| Features Provided | Finished head |
| Grip Length | 0.248 inches minimum and 0.308 inches maximum |
| Grip Range | 0.248 to 0.308 in |
| Hardness Rating | 24.0 rockwell c minimum and 35.0 rockwell c maximum |
| Head Height | 0.260 |
| Head Style | Double hexagon w/hole |
| Head Type | Double Hexagon |
| Industry Standards/Certification | MS9556 |
| Length | 0.938 in, 15/16 |
| Material | Iron |
| Material Specification | Ams 5731 assn std single material response |
| Min. Tensile Strength (psi) | 130000 pounds per square inch |
| Minimum Yield Strength | 85000 pounds per square inch |
| NIIN | 00-551-4845 |
| NSN | 5306-00-551-4845 |
| Surface Finish | 32.0 microinches bearing surface of head, 32.0 microinches grip, 32.0 microinches threads |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.630 inches minimum and 0.690 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNJF |
| Thread Size | 0.1900-32, 10 |
| Weight | 0.011 lb |
| Width Between Flats | 0.250 |
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS9556-13. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error