5305-01-425-3053, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-425-3053

Federal Supply Class:
5305

National Item Identification Number:
014253053

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:

7360035-01

90536

LOCKHEED MARTIN CORP

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.099 INCHES
THREAD QUANTITY PER INCH	48
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.140 INCHES NOMINAL
FASTENER LENGTH	0.405 INCHES NOMINAL
MATERIAL	STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
HEAD STYLE	FLAT FILLISTER
HEAD DIAMETER	0.166 INCHES MINIMUM AND
	0.170 INCHES MAXIMUM
HEAD HEIGHT	0.096 INCHES MINIMUM AND
	0.099 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.063 INCHES MINIMUM AND
	0.068 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FIRST DIAMETER FROM HEAD	0.097 INCHES MINIMUM AND
	0.101 INCHES MAXIMUM
SECOND DIAMETER FROM HEAD	0.070 INCHES MINIMUM AND
	0.074 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.265 INCHES NOMINAL

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