5305-00-007-1581, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-007-1581

Federal Supply Class:
5305

National Item Identification Number:
000071581

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:

965336-21	58998	FASTENER INNOVATION TECHNOLOGY, INC.
965336-21	82577	RAYTHEON COMPANY
A1C617-21	06725	SPS TECHNOLOGIES, LLC
AIC617-21	06725	SPS TECHNOLOGIES, LLC
E546-21	17446	HUCK INTERNATIONAL, INC
E546-21	97928	HUCK INTL INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.406 INCHES MINIMUM AND 0.411 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.656 INCHES MINIMUM AND 0.661 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.109 INCHES MINIMUM AND 0.114 INCHES MAXIMUM
HEAD HEIGHT	0.088 INCHES MINIMUM AND 0.102 INCHES MAXIMUM
HEAD DIAMETER	0.255 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	OFFSET CRUCIFORM (TORQUE SET)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.164 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.250 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNJC

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