5305-01-156-5100 SCREW,TAPPING Index 5306-01-156-5102 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-156-5101

Federal Supply Class:
5306

National Item Identification Number:
011565101

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:
708-4674145 ITEM 953711NAVAL SEA SYSTEMS COMMAND
87553-1502 ITEM 996169ELECTRIC BOAT CORPORATION


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER2.500 INCHES
THREAD QUANTITY PER INCH4
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH4.500 INCHES NOMINAL
FASTENER LENGTH5.500 INCHES NOMINAL
MATERIALNICKEL ALLOY 400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLEHEXAGON
HEAD HEIGHT1.750 INCHES NOMINAL
WIDTH BETWEEN FLATS4.500 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD2.130 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.000 INCHES NOMINAL
SPECIAL FEATURES4 HOLES 0.281 IN. DIA. DRILLED THRU WIDTH ACCROSS 2 FLATS


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