5305-00-056-2498, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-056-2498

Federal Supply Class:
5305

National Item Identification Number:
000562498

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:

1561200

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	0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
FIRST DIAMETER FROM HEAD	0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM
HEAD DIAMETER	0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
HEAD HEIGHT	0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM
HEAD STYLE	PAN
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL DOCUMENT AND CLASSIFICATION	AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 302 OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.138 INCHES
SPECIAL FEATURES	POINT 0.609 IN. MIN LG 0.641 IN. MAX LG,POINT CHAMFER ANGLE 15 DEG
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
THREAD QUANTITY PER INCH	32
THREAD SERIES DESIGNATOR	UNC

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