Part Details | MACHINE BOLT
5306-00-526-3994 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: J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, J644P13B, 5306-00-526-3994, 00-526-3994, 5306005263994, 005263994
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 28, 1974 | 00-526-3994 | 01847 ( BOLT, MACHINE ) |
REFERENCE DRAWINGS & PICTURES
DOUBLE HEXAGON EXTENDED WASHER
HEXAGON FLATS
Cross Reference | NSN 5306-00-526-3994
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| J644P13B | 4GP55 | ACUFAST AIRCRAFT PRODUCTS INC. |
| J644P13B | 92215 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| J644P13B | 06950 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| J644P13B | 06329 | ASC INTERNATIONAL, INC.DBA ASC INDUSTRIES |
| J644P13B | 27238 | BRISTOL INDUSTRIES |
| J644P13B | 07482 | GENERAL ELECTRIC COMPANYDBA GE |
| J644P13B | 23899 | J.W. MANUFACTURING, INCDBA ARCONIC FASTENING SYSTEMS AND |
| J644P13B | 0UCY9 | M.S. AEROSPACE INC. |
| J644P13B | 2T498 | MORTON GRINDING, INC.DBA MORTON MANUFACTURING |
| J644P13B | 56878 | SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION |
| J644P13B | 06725 | SPS TECHNOLOGIES, LLCDBA AIR INDUSTRIES |
| J644P13B | 06710 | VALLEY-TODECO, INC.DBA ARCONIC FASTENING SYSTEMS AND |
Technical Data | NSN 5306-00-526-3994
| Characteristic | Specifications |
|---|---|
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.740 INCHES MINIMUM AND 0.820 INCHES MAXIMUM |
| FASTENER LENGTH | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM |
| HEAD HEIGHT | 0.293 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.312 INCHES NOMINAL |
| EXTENDED WASHER DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| HOLE CONFIGURATION STYLE | HEXAGON FLATS |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 2 |
| HOLE DIAMETER | 0.085 INCHES NOMINAL |
| GRIP LENGTH | 0.190 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| FEATURES PROVIDED | FINISHED HEAD |