5305-01-271-2041 SCREW,MACHINE Index 5305-01-271-2043 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-271-2042

Federal Supply Class:
5306

National Item Identification Number:
012712042

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:
6886218-15373342ALLISON TRANSMISSION INC


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.975 INCHES MINIMUM AND 0.995 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.040 INCHES MINIMUM AND 1.060 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER1.990 INCHES MINIMUM AND 2.020 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FASTENER LENGTH2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
HEAD HEIGHT0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL COMP 1020 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH BETWEEN FLATS0.434 INCHES MINIMUM AND 0.437 INCHES MAXIMUM
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THIRD DIAMETER FROM HEAD0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
THREAD LENGTH0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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