5305-01-198-8059, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-198-8059

Federal Supply Class:
5305

National Item Identification Number:
011988059

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:

75A123165-2001	76301	THE BOEING COMPANY
75A123165-2005	76301	THE BOEING COMPANY
75A123165-2OO1	56878	SPS TECHNOLOGIES, LLC
75A123165-2OO1	59563	REID PRODUCTS INC.
75A123165-2OO1	92215	HOWMET GLOBAL FASTENING SYSTEMS INC

Techincal Specification:

COUNTERSINK ANGLE	101.0 DEGREES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	1.088 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	1.225 INCHES MINIMUM AND 1.240 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	2.050 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.6860 INCHES MINIMUM AND 0.6865 INCHES MAXIMUM
HEAD DIAMETER	1.160 INCHES MINIMUM AND 1.170 INCHES MAXIMUM
HEAD HEIGHT	0.150 INCHES NOMINAL
HEAD STYLE	FLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLE	HIGH-TORQUE
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP XM-13 OVERALL
NOMINAL THREAD DIAMETER	0.625 INCHES
POINT STYLE	FLAT
SECOND DIAMETER FROM HEAD	0.529 INCHES MINIMUM AND 0.539 INCHES MAXIMUM
SPECIAL FEATURES	IT HAS A CONCENTRIC THREADED HOLE ALONG THE LONGITUDINAL CENTERLINE,0.50020 UNJF-3B,0.943 IN. DEEP
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.864 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
THREAD QUANTITY PER INCH	18

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