3010-00-940-8814 COUPLING,SHAFT,FLEXIBLE Index 3950-00-940-8821 HOIST,CHAIN

National Stock Number:
5306-00-940-8815

Federal Supply Class:
5306

National Item Identification Number:
009408815

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:
1158897919207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER1.804 INCHES MINIMUM AND 1.814 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER1.281 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY2
FASTENER LENGTH2.625 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.625 INCHES NOMINAL
HEAD LENGTH1.500 INCHES NOMINAL
HEAD HEIGHT2.125 INCHES NOMINAL
HOLE CONFIGURATION STYLESQUARE FLATS
HOLE DIAMETER0.756 INCHES MINIMUM AND 0.758 INCHES MAXIMUM
HOLE QUANTITY1
HOLE TYPEDRILLED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-741,GRADE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES
SECOND DIAMETER FROM HEAD0.523 INCHES MINIMUM AND 0.533 INCHES MAXIMUM
SPECIAL FEATURESDO NOT PAINT HOLES OR THREADS
WIDTH BETWEEN FLATS1.493 INCHES MINIMUM AND 1.497 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH1.125 INCHES NOMINAL
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH18


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