Part Details | MACHINE BOLT
5306-00-638-2630 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: 256687, 256687, 256687, 256687, 5306-00-638-2630, 00-638-2630, 5306006382630, 006382630
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | JAN 01, 1963 | 00-638-2630 | 01847 ( BOLT, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5306-00-638-2630
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 256687 | 56055 | PRECISION SPEED MANUFACTURING, LLC |
| 256687 | 80539 | SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP |
| 256687 | 77445 | UNITED TECHNOLOGIES CORPORATIONDBA PRATT WHITNEY-SPARE PARTS |
| 256687 | 0EEG3 | VALCO COGOVERNMENT SALES OFFICE |
Technical Data | NSN 5306-00-638-2630
| Characteristic | Specifications |
|---|---|
| HEAD STYLE | HEXAGON |
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| NONSTANDARD THREAD PITCH DIAMETER | +0.2216 TO +0.2238 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.615 INCHES MINIMUM AND 0.695 INCHES MAXIMUM |
| FASTENER LENGTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| MINIMUM TENSILE STRENGTH | 136000 POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.431 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| GRIP LENGTH | 0.315 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |