5120-01-625-9008 INSERTER AND REMOVER,BEARING AND 4140-01-625-6544 GUARD,FAN IMPELLER

National Stock Number:
5305-01-625-8193

Federal Supply Class:
5305

National Item Identification Number:
016258193

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
J2295J429C2R08-N44G50U583SAE INTERNATIONAL
J2295J429C2R08-N44G581343SOCIETY OF AUTOMOTIVE ENGINEERS INC


Techincal Specification:
FASTENER LENGTH2.75 INCHES NOMINAL
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.50 INCHES
SPECIAL FEATURESMATERIAL IS GRADE 5 STEEL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES NOMINAL
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM


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