5305-01-266-8304, SCREW,EXTERNALLY RELIEVED BODY

5305-01-266-8305 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-266-8304

Federal Supply Class:
5305

National Item Identification Number:
012668304

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:

5002525

54490

DEPT OF THE ARMY U S ARMY ELECTRONICS COMMAND NIGHT VISION LABORATORY

Techincal Specification:

COLOR	BLACK OVERALL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.080 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.205 INCHES NOMINAL
EXTENDED WASHER DIAMETER	0.450 INCHES NOMINAL
EXTENDED WASHER THICKNESS	0.040 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.105 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
HEAD DIAMETER	0.140 INCHES MINIMUM AND 0.144 INCHES MAXIMUM
HEAD HEIGHT	0.275 INCHES NOMINAL
HEAD STYLE	FLAT EXTENDED WASHER
HOLE CONFIGURATION STYLE	ROUND LONGITUDINAL HOLE
HOLE THREAD QUANTITY PER INCH	80
HOLE TYPE	THREADED
HOLE NOMINAL THREAD DIAMETER	0.060 INCHES
HOLE QUANTITY	1
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES
POINT STYLE	FLAT
SECOND DIAMETER FROM HEAD	0.125 INCHES NOMINAL
SPECIAL FEATURES	SPECIAL FOUR POINTED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	LEFT-HAND
THREAD LENGTH	1.535 INCHES MINIMUM AND 1.565 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNS

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