1680-00-302-8634 CONTROL ASSEMBLY,PUSH-PULL Index 5305-00-302-8639 SETSCREW

National Stock Number:
5306-00-302-8637

Federal Supply Class:
5306

National Item Identification Number:
003028637

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:
1389120AHP5CURTISS-WRIGHT CONTROLS, INC.


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.855 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER1.760 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER1.850 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.275 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.265 INCHES MINIMUM AND 0.305 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY5
FASTENER LENGTH1.880 INCHES NOMINAL
FIFTH DIAMETER FROM HEAD0.240 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.344 INCHES MINIMUM AND 0.345 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.490 INCHES MINIMUM AND 0.519 INCHES MAXIMUM
HEAD HEIGHT0.120 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
MATERIALSTEEL COMP 4140 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
SECOND DIAMETER FROM HEAD0.341 INCHES MINIMUM AND 0.342 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER0.073 INCHES NOMINAL FIRST HOLE
THIRD DIAMETER FROM HEAD0.240 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.300 INCHES MINIMUM AND 0.330 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH24


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