5305-00-232-0488, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-232-0488

Federal Supply Class:
5305

National Item Identification Number:
002320488

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:

3155043	80064	NAVAL SHIP SYSTEMS COMMAND
6B871	82005	ALLARD NAZARIAN GROUP, INC.
B3155043	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
S4200B3155043	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	2.000 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER	2.843 INCHES MINIMUM AND 2.846 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	2
FASTENER LENGTH	3.593 INCHES MINIMUM AND 3.596 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
HEAD DIAMETER	0.937 INCHES NOMINAL
HEAD HEIGHT	0.250 INCHES NOMINAL
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.562 INCHES
SECOND DIAMETER FROM HEAD	0.681 INCHES MINIMUM AND 0.686 INCHES MAXIMUM
SPECIAL FEATURES	THREAD RELIEF 0.460 IN. MIN 0.465 IN. MAX DIA,0.187 IN. WIDE
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.563 INCHES MINIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	18

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