5305-00-227-1488, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-227-1488

Federal Supply Class:
5305

National Item Identification Number:
002271488

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:

8509450-3	11447	L3 TECHNOLOGIES, INC.
8509450-3	49671	LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS AUTOMATED SPARES

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.118 INCHES MINIMUM AND 0.128 INCHES MAXIMUM
HEAD DIAMETER	0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	SLOT
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.164 INCHES
SPECIAL FEATURES	COLOR RED EPOXY NO. 1985632-1
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072 E-300 MIL SPEC 1ST TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE AND PAINT OVERALL
THREAD CLASS	2A
THREAD LENGTH	0.250 INCHES MINIMUM
THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNC

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