NSN 5306-00-121-7856
Part Details | MACHINE BOLT
5306-00-121-7856 An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.
Alternate Parts: MS2128011, MS21280-11, 5306-00-121-7856, 00-121-7856, 5306001217856, 001217856
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 01, 1968 | 00-121-7856 | 01847 ( BOLT, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5306-00-121-7856
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| MS21280-11 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
Technical Data | NSN 5306-00-121-7856
| Characteristic | Specifications |
|---|---|
| HEAD STYLE | 0 HEXAGON |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.741 INCHES MINIMUM |
| FASTENER LENGTH | 0.812 INCHES NOMINAL |
| MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.330 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| EXTENDED WASHER DIAMETER | 0.438 INCHES NOMINAL |
| EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |