5305-01-298-3123 SETSCREW Index 5306-01-298-3125 BOLT,EXTERNALLY RELIEVED BODY

National Stock Number:
5306-01-298-3124

Federal Supply Class:
5306

National Item Identification Number:
012983124

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:
6146389-153711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.200 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH0.750 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.190 INCHES NOMINAL
HEAD DIAMETER0.625 INCHES NOMINAL
HEAD HEIGHT0.160 INCHES NOMINAL
HEAD STYLEDOUBLE CHAMFER
MATERIALSTEEL COMP 304 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
POINT STYLEFLAT
SPECIAL FEATURESKNURL HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 TY 1 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35 TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES NOMINAL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNC


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