5305-01-509-1151, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-509-1151

Federal Supply Class:
5305

National Item Identification Number:
015091151

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:

717536147-001

04939

LOCKHEED MARTIN CORPORATION

Techincal Specification:

FIRST DIAMETER FROM HEAD	0.124 INCHES MINIMUM AND 0.126 INCHES MAXIMUM
HEAD DIAMETER	0.262 INCHES MINIMUM AND 0.272 INCHES MAXIMUM
HEAD HEIGHT	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A493 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 316 OVERALL OR STEEL COMP 384 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	SCREW CAPTIVE
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	0.164 INCHES
SPECIAL FEATURES	MAKE FROM NAS1352C08-12, NSN 5305-00-403-3497. ONLY DIFFERENCE NO THREADS FROM BOTTOM OF HEAD DOWN .450 WITH MRC CSNG BODY. THREADS ON END ONLY.
WIDTH ACROSS FLATS	0.141 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNC
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM

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