5305-00-920-9957, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-920-9957

Federal Supply Class:
5305

National Item Identification Number:
009209957

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:

150850-002

82268

SPARTON CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	2.635 INCHES MINIMUM AND 2.648 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER	2.677 INCHES MINIMUM AND 2.683 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.137 INCHES MINIMUM AND 0.147 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	4
FASTENER LENGTH	3.076 INCHES MINIMUM AND 3.116 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.147 INCHES MINIMUM AND 0.149 INCHES MAXIMUM
FOURTH DIAMETER FROM HEAD	0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
HEAD DIAMETER	0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM
HEAD HEIGHT	0.420 INCHES MINIMUM AND 0.450 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 303 OR STEEL COMP 304 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
SECOND DIAMETER FROM HEAD	0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THIRD DIAMETER FROM HEAD	0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
THREAD LENGTH	0.287 INCHES MINIMUM AND 0.327 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF

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