5305-00-115-6250, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-115-6250

Federal Supply Class:
5305

National Item Identification Number:
001156250

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:

20-143	1VPW8	GENERAL DYNAMICS MISSION SYSTEMS, INC.
20-143	94990	MOTOROLA INC. DBA INTEGRATED INFORMATION SYSTEMS GROUP
3B41741A09	1VPW8	GENERAL DYNAMICS MISSION SYSTEMS, INC.
3B41741A09	94990	MOTOROLA INC. DBA INTEGRATED INFORMATION SYSTEMS GROUP
50711	96046	CRANE PUMPS & SYSTEMS PFT CORP

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.345 INCHES MINIMUM AND 2.375 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
EXTENDED WASHER THICKNESS	0.015 INCHES MINIMUM AND 0.202 INCHES MAXIMUM
FASTENER LENGTH	3.110 INCHES MINIMUM AND 3.140 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.166 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD HEIGHT	0.160 INCHES MINIMUM AND 0.178 INCHES MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 1020 OVERALL
MINIMUM TENSILE STRENGTH	90000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
WIDTH BETWEEN FLATS	0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	135410027 FSCM 94990 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CHROMATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.735 INCHES MINIMUM AND 0.795 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF

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