5305-01-158-3874 SETSCREW Index 5305-01-158-3876 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-01-158-3875

Federal Supply Class:
5306

National Item Identification Number:
011583875

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:
141C2905 P104241BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER2.680 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER4.230 INCHES MINIMUM AND 4.270 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZY
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FASTENER LENGTH4.230 INCHES MINIMUM AND 4.270 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD0.935 INCHES MINIMUM AND 0.945 INCHES MAXIMUM
HEAD DIAMETER1.668 INCHES MINIMUM AND 1.688 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
MATERIALNICKEL ALLOY OVERALL
NOMINAL THREAD DIAMETER1.125 INCHES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SPECIAL FEATURESTHE BOLT IS A CASTELLATED HEX HEAD,8 SLOTS EQUALLY SPACED AT 0.286 INCHES APART
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.550 INCHES MINIMUM AND 1.590 INCHES MAXIMUM
THREAD QUANTITY PER INCH8
THREAD SERIES DESIGNATORUN


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