5306-01-157-8358 BOLT,EXTERNALLY RELIEVED BODY Index 5306-01-157-8360 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-157-8359

Federal Supply Class:
5306

National Item Identification Number:
011578359

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:
B486425K0378ROLLS-ROYCE PLC


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.650 INCHES MINIMUM AND 0.690 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH1.270 INCHES NOMINAL
HEAD HEIGHT0.150 INCHES NOMINAL
HEAD STYLEDEE CHAMFER
MATERIAL DOCUMENT AND CLASSIFICATIONHR 601,FSCM K0378 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIAL FEATURES0.500 IN. LG OF BODY GROUND WITH A RADIUS 0.150 IN. EQUALLY FROM EACH END TO 0.195 IN. DIA FROM 0.250 IN.
SECOND DIAMETER FROM HEAD0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.580 INCHES MINIMUM AND 0.620 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)


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