5305-01-501-0031, SCREW,EXTERNALLY RELIEVED BODY

2520-01-501-0032 CONTROL ASSEMBLY,TRANSMISSION

National Stock Number:
5305-01-501-0031

Federal Supply Class:
5305

National Item Identification Number:
015010031

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:

595-6985858-18	53711	NAVAL SEA SYSTEMS COMMAND
H692-1602-18	96169	ELECTRIC BOAT CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.360 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.542 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	1.235 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.746 INCHES NOMINAL
HEAD DIAMETER	1.000 INCHES NOMINAL
HEAD HEIGHT	0.500 INCHES NOMINAL
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH THREADS OR PELLET THREADS OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	NICKEL ALLOY K-500 OVERALL OR NICKEL ALLOY 502 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	0.625 INCHES
SECOND DIAMETER FROM HEAD	0.502 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
SPECIAL FEATURES	DISTRIBUTION STATEMENT D;EXPORT CONTROLLED DATA
WIDTH ACROSS FLATS	0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.693 INCHES NOMINAL
THREAD QUANTITY PER INCH	11
THREAD SERIES DESIGNATOR	UNC

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