5305-01-079-9582, SCREW,EXTERNALLY RELIEVED BODY

5305-01-079-9581 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-079-9582

Federal Supply Class:
5305

National Item Identification Number:
010799582

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:

642AS7521

30003

NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.875 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.500 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	2.281 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.180 INCHES NOMINAL
HEAD HEIGHT	0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM
HEAD DIAMETER	0.365 INCHES NOMINAL
HEAD STYLE	PAN NO. 2
NOMINAL THREAD DIAMETER	0.190 INCHES
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 TYPE 302 COND B FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 TYPE 304 COND B FED SPEC 2ND MATERIAL RESPONSE OR AMS 5378 ASSN STD 3RD MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 304 OR STEEL CORROSION RESISTING OVERALL
SECOND DIAMETER FROM HEAD	0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.406 INCHES NOMINAL
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNF
SPLINE WIDTH	0.060 INCHES NOMINAL
SPLINE MAJOR DIAMETER	0.365 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL

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