5305-01-170-6132, SCREW,EXTERNALLY RELIEVED BODY

5305-01-170-6131 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-170-6132

Federal Supply Class:
5305

National Item Identification Number:
011706132

Description:
SCREW,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 undercut for thread relief). It is No. 0 (0.060 IN.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below No. 10 (0.190 IN.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also BOLT, EXTERNALLY RELIEVED BODY and BOLT, INTERNAL WRENCHING.

Manufacturer Information:

114D2412-4	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY
155B7766-5	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.290 INCHES NOMINAL
CRITICALITY CODE JUSTIFICATION	ZZZY
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.720 INCHES MINIMUM AND 2.780 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.803 INCHES MINIMUM AND 0.819 INCHES MAXIMUM
HEAD STYLE	HEXAGON
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	AISI 304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 304 OVERALL
NOMINAL THREAD DIAMETER	1.000 INCHES
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
THREAD QUANTITY PER INCH	8
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A
THREAD LENGTH	1.430 INCHES MINIMUM AND 1.490 INCHES MAXIMUM

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