5306-00-637-1942 BOLT,EXTERNALLY RELIEVED BODY Index 5310-00-637-1951 WASHER,FLAT

National Stock Number:
5306-00-637-1944

Federal Supply Class:
5306

National Item Identification Number:
006371944

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:
4-8090781205THE BOEING COMPANY


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.400 INCHES NOMINAL FIRST HOLE
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER2.130 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER2.220 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FASTENER LENGTH3.290 INCHES NOMINAL
FEATURES PROVIDEDCASEHARDENED
FIRST DIAMETER FROM HEAD0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM
HEAD DIAMETER0.350 INCHES NOMINAL
HEAD HEIGHT0.080 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
MATERIALSTEEL COMP 416 OVERALL
PROPRIETARY CHARACTERISTICSPACS
MINIMUM TENSILE STRENGTH110000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SECOND DIAMETER FROM HEAD0.199 INCHES MINIMUM AND 0.204 INCHES MAXIMUM
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM FIRST HOLE AND 0.078 INCHES MAXIMUM FIRST HOLE
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.990 INCHES MINIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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