5305-01-161-9110, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-161-9110

Federal Supply Class:
5305

National Item Identification Number:
011619110

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:

SM-B-523379-2

80063

US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.126 INCHES MINIMUM AND 0.157 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.078 INCHES NOMINAL
HEAD DIAMETER	0.205 INCHES MINIMUM AND 0.219 INCHES MAXIMUM
HEAD HEIGHT	0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SPECIAL FEATURES	FINISH COLOR BLACK
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	OXIDE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.343 INCHES NOMINAL
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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