5305-00-637-0484, SCREW,EXTERNALLY RELIEVED BODY

5305-00-637-0482 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-637-0484

Federal Supply Class:
5305

National Item Identification Number:
006370484

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:

41590-2	24930	L3HARRIS TECHNOLOGIES, INC
GS21-501-13	24930	L3HARRIS TECHNOLOGIES, INC

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.397 INCHES MINIMUM AND 0.478 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.803 INCHES MINIMUM AND 0.823 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM
HEAD DIAMETER	0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
HEAD HEIGHT	0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
HEAD STYLE	KNURLED NO. 1
INTERNAL DRIVE STYLE	SLOT
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-7720 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-763 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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