NSN 5306-00-139-6950

Part Details | MACHINE BOLT

5306-00-139-6950 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: MS956620, MS9566-20, 5306-00-139-6950, 00-139-6950, 5306001396950, 001396950

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53SEP 10, 197100-139-695001847 ( BOLT, MACHINE )
REFERENCE DRAWINGS & PICTURES

HEXAGON

DOUBLE HEXAGON LONGITUDINAL HOLE

Cross Reference | NSN 5306-00-139-6950
Part Number Cage Code Manufacturer
MS9566-2096906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5306-00-139-6950
Characteristic Specifications
HEAD STYLE0 HEXAGON
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.750 INCHES MINIMUM AND 0.810 INCHES MAXIMUM
FASTENER LENGTH1.375 INCHES NOMINAL
MINIMUM TENSILE STRENGTH130000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH85000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.300 INCHES NOMINAL
WIDTH BETWEEN FLATS0.312 INCHES NOMINAL
EXTENDED WASHER DIAMETER0.438 INCHES NOMINAL
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM
HOLE CONFIGURATION STYLE DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE TYPE DRILLED
HOLE QUANTITY4
HOLE DIAMETER0.070 INCHES NOMINAL
GRIP LENGTH0.565 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
FEATURES PROVIDED FINISHED HEAD