NSN 5306-00-639-1568

Part Details | MACHINE BOLT

5306-00-639-1568 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: S1610211711, S1610-21171-1, 5306-00-639-1568, 00-639-1568, 5306006391568, 006391568

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JAN 01, 196300-639-156801847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

Cross Reference | NSN 5306-00-639-1568
Part Number Cage Code Manufacturer
S1610-21171-178286SIKORSKY AIRCRAFT CORPORATIONDBA SIKORSKY
Technical Data | NSN 5306-00-639-1568
Characteristic Specifications
HEAD STYLE0 HEXAGON
THREAD SERIES DESIGNATOR UNF
NOMINAL THREAD DIAMETER0.438 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.808 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
FASTENER LENGTH1.923 INCHES MINIMUM AND 1.953 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.320 INCHES MINIMUM AND 0.330 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.494 INCHES MINIMUM AND 0.503 INCHES MAXIMUM
EXTENDED WASHER DIAMETER0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
FEATURES PROVIDED UNFINISHED HEAD