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

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

National Stock Number:
5305-01-170-6131

Federal Supply Class:
5305

National Item Identification Number:
011706131

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:

114D2363-8	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY
155B7766-2	04241	BECHTEL MARINE PROPULSION CORPORATION DBA KNOLLS ATOMIC POWER LABORATORY

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	ZZZY
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	3.500 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	5.470 INCHES MINIMUM AND 5.530 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 TYPE 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 416 OVERALL
MINIMUM YIELD STRENGTH	80000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	100000 POUNDS PER SQUARE INCH
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 CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
THREAD QUANTITY PER INCH	8
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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