5305-01-052-5808, SCREW,EXTERNALLY RELIEVED BODY

5305-01-052-5807 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-052-5808

Federal Supply Class:
5305

National Item Identification Number:
010525808

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:

430R298H01	4F053	R AND S MACHINE CO
430R298H01	97942	NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.160 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.418 INCHES MINIMUM AND 0.422 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.306 INCHES MINIMUM AND 0.316 INCHES MAXIMUM
HEAD DIAMETER	0.555 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
HEAD HEIGHT	0.058 INCHES MINIMUM AND 0.062 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
SPECIAL FEATURES	HOLE THREADED END 0.360 IN. DEEP,0.250 IN. DIA
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.258 INCHES MINIMUM AND 0.262 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

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