5360-00-494-1787 SPRING,HELICAL,COMPRESSION Index 1560-00-494-1790 COVER,ACCESS,AIRCRAFT

National Stock Number:
5306-00-494-1789

Federal Supply Class:
5306

National Item Identification Number:
004941789

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:
69606099167HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.333 INCHES MINIMUM AND 0.353 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.479 INCHES MINIMUM AND 0.489 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY3
FASTENER LENGTH1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.6245 INCHES MINIMUM AND 0.6249 INCHES MAXIMUM
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP E4340 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
SECOND DIAMETER FROM HEAD0.4495 INCHES MINIMUM AND 0.4515 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THIRD DIAMETER FROM HEAD0.6245 INCHES MINIMUM AND 0.6249 INCHES MAXIMUM
THREAD LENGTH0.543 INCHES MINIMUM AND 0.583 INCHES MAXIMUM
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS0.735 INCHES MINIMUM AND 0.755 INCHES MAXIMUM


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