5305-01-087-4477, SCREW,EXTERNALLY RELIEVED BODY

5305-01-087-4476 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-087-4477

Federal Supply Class:
5305

National Item Identification Number:
010874477

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:

904369-1

96214

RAYTHEON COMPANY

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.164 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	0.690 INCHES NOMINAL
MATERIAL	STEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.375 INCHES NOMINAL
HEAD HEIGHT	0.150 INCHES NOMINAL
INTERNAL DRIVE STYLE	SLOT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	3
FIRST DIAMETER FROM HEAD	0.165 INCHES NOMINAL
SECOND DIAMETER FROM HEAD	0.185 INCHES MINIMUM AND
	0.187 INCHES MAXIMUM
THIRD DIAMETER FROM HEAD	0.130 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.060 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	0.260 INCHES MINIMUM AND
	0.265 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER	0.320 INCHES NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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