5305-01-406-1656, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-406-1656

Federal Supply Class:
5305

National Item Identification Number:
014061656

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:

23-01680-002

00724

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
THREAD LENGTH	0.310 INCHES NOMINAL
FASTENER LENGTH	3.690 INCHES MINIMUM AND
	3.750 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
HEAD STYLE	PAN
HEAD DIAMETER	0.275 INCHES NOMINAL
HEAD HEIGHT	0.105 INCHES MINIMUM AND
	0.115 INCHES MAXIMUM
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FIRST DIAMETER FROM HEAD	0.112 INCHES NOMINAL
SECOND DIAMETER FROM HEAD	0.124 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.540 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	3.440 INCHES NOMINAL

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