5305-01-159-6570 THUMBSCREW Index 5306-01-159-6572 BOLT,INTERNALLY RELIEVED BODY

National Stock Number:
5306-01-159-6571

Federal Supply Class:
5306

National Item Identification Number:
011596571

Description:
BOLT,EXTERNALLY RELIEVED BODY

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.


Manufacturer Information:
W-1422430AT62SIEMENS ENERGY, INC.
W-142243830Q4CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
W-14224388663DRESSER-RAND CO INGERSOLL-RAND OPNS A JOINT VENTURE


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER4.128 INCHES MINIMUM AND 5.120 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH5.097 INCHES MINIMUM AND 5.315 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.767 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
HEAD HEIGHT0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
HEAD STYLEHEXAGON
HOLE CONFIGURATION STYLEHEXAGON FLATS
HOLE DIAMETER0.063 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
HOLE QUANTITY1
HOLE TYPEDRILLED
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.875 INCHES
WIDTH BETWEEN FLATS1.248 INCHES MINIMUM AND 1.372 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.938 INCHES MINIMUM AND 1.062 INCHES MAXIMUM
THREAD QUANTITY PER INCH3
THREAD SERIES DESIGNATORUNF


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