NSN 5306-00-478-0337

Part Details | MACHINE BOLT

5306-00-478-0337 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: AN2031A, AN20-31A, AN2031A, AN20-31A, 5306-00-478-0337, 00-478-0337, 5306004780337, 004780337

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAY 28, 197000-478-033701847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-478-0337
Part Number Cage Code Manufacturer
AN20-31A88044AERONAUTICAL STANDARDS GROUPDEPT OF NAVY AND AIR FORCE
AN20-31A80205NATIONAL AEROSPACE STANDARDSCOMMITTEE AEROSPACE INDUSTRIES
Technical Data | NSN 5306-00-478-0337
Characteristic Specifications
HEAD STYLE HEXAGON
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER1.250 INCHES
THREAD QUANTITY PER INCH12
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH1.655 INCHES MINIMUM AND 1.734 INCHES MAXIMUM
FASTENER LENGTH3.296 INCHES MINIMUM AND 3.343 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.640 INCHES MINIMUM AND 0.672 INCHES MAXIMUM
WIDTH BETWEEN FLATS1.802 INCHES MINIMUM AND 1.815 INCHES MAXIMUM
GRIP LENGTH1.609 INCHES MINIMUM AND 1.641 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD