5305-01-142-9135, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-142-9135

Federal Supply Class:
5305

National Item Identification Number:
011429135

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:

12310448

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.135 INCHES NOMINAL0.135 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	11
FASTENER LENGTH	0.415 INCHES NOMINAL0.415 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.187 INCHES NOMINAL0.187 INCHES NOMINAL
HEAD HEIGHT	0.150 INCHES NOMINAL0.150 INCHES NOMINAL
HEAD STYLE	HEXAGONHEXAGON
INTERNAL DRIVE STYLE	SLOTSLOT
LOCKING FEATURE	STRIP THREADSSTRIP THREADS
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES0.250 INCHES
WIDTH BETWEEN FLATS	0.428 INCHES NOMINAL0.428 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	NAS 1283 ASSN STD SINGLE TREATMENT RESPONSE POINTNAS 1283 ASSN STD SINGLE TREATMENT RESPONSE POINT
SURFACE TREATMENT	PASSIVATE OVERALLPASSIVATE OVERALL
THREAD CLASS	2A2A
THREAD DIRECTION	RIGHT-HANDRIGHT-HAND
THREAD LENGTH	0.280 INCHES NOMINAL0.280 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNFUNF
THREAD QUANTITY PER INCH	2828

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