5305-00-142-4688, SCREW,EXTERNALLY RELIEVED BODY

5305-00-142-4687 SCREW,EXTERNALLY RELIEVED BODY

2915-00-142-4690 DISC,RELIEF VALVE BY-PASS

National Stock Number:
5305-00-142-4688

Federal Supply Class:
5305

National Item Identification Number:
001424688

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:

528907-10

96214

RAYTHEON COMPANY

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.170 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM
HEAD DIAMETER	0.253 INCHES MINIMUM AND 0.273 INCHES MAXIMUM
HEAD HEIGHT	0.067 INCHES MINIMUM AND 0.087 INCHES MAXIMUM
HEAD STYLE	PAN NO. 2
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7720 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 303SE OR STEEL COMP 316 OR STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.138 INCHES
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.180 INCHES MINIMUM AND 0.220 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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