5306-00-687-6037 BOLT,MACHINE Index 5306-00-687-6043 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-00-687-6042

Federal Supply Class:
5306

National Item Identification Number:
006876042

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:
37366-32T498MORTON GRINDING, INC
373662-370210HONEYWELL INTERNATIONAL INC.
373662-372599ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO
373662-399193HONEYWELL INTERNATIONAL INC.


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.480 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY3
FASTENER LENGTH2.430 INCHES MINIMUM AND 2.450 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALNICKEL ALLOY X-750 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
SECOND DIAMETER FROM HEAD0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.930 INCHES MINIMUM AND 0.970 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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