5305-00-911-3837, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-911-3837

Federal Supply Class:
5305

National Item Identification Number:
009113837

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:

16284-4	03990	INGERSOLL-RAND CO
16284-4	04577	MISSION SYSTEMS ORCHARD PARK INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FASTENER LENGTH	0.254 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
HEAD HEIGHT	0.050 INCHES NOMINAL
HEAD STYLE	HEXAGON
INTERNAL DRIVE STYLE	W/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-B-611 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	COPPER ALLOY 360 OVERALL
NOMINAL THREAD DIAMETER	0.138 INCHES
SECOND DIAMETER FROM HEAD	0.183 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.077 INCHES MINIMUM AND 0.082 INCHES MAXIMUM
THREAD QUANTITY PER INCH	40
THREAD SERIES DESIGNATOR	UNF

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