5305-00-476-7442, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-476-7442

Federal Supply Class:
5305

National Item Identification Number:
004767442

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:

3150-9144-001	03950	NAVAL INVENTORY CONTROL POINT MECHANICSBURG
3150-9144-001	K0656	BAE SYSTEMS (OPERATIONS) LIMITED

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.305 INCHES MINIMUM AND 1.315 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	1.685 INCHES MINIMUM AND 1.695 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM
HEAD DIAMETER	0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
HEAD HEIGHT	0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
SURFACE TREATMENT	PASSIVATE AND CHROMATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	32

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