3020-00-424-0549 PULLEY,GROOVE Index 3040-00-424-0552 SHAFT,STRAIGHT

National Stock Number:
5306-00-424-0551

Federal Supply Class:
5306

National Item Identification Number:
004240551

Description:
BOLT,MACHINE

Detail:
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.


Manufacturer Information:
C173335311AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES NOMINAL
FASTENER LENGTH2.250 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING20.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER1.063 INCHES NOMINAL
HEAD HEIGHT0.344 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES
SPECIAL FEATURESFURNISHED W/1 HEX NUT
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.250 INCHES MINIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH11


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