5305-00-514-8140, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-514-8140

Federal Supply Class:
5305

National Item Identification Number:
005148140

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:

306016	00198	PRATT & WHITNEY CANADA CORP
306016	77445	RTX CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.510 INCHES MINIMUM AND 1.530 INCHES MAXIMUM
COUNTERSINK ANGLE	79.0 DEGREES MINIMUM AND 81.0 DEGREES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.020 INCHES MINIMUM AND 2.040 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.461 INCHES MINIMUM AND 0.471 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.865 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.578 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.5210 TO 0.5240 INCHES
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.510 INCHES MINIMUM
THREAD QUANTITY PER INCH	12
THREAD SERIES DESIGNATOR	UNS

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