5305-01-219-4124, SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-219-4124

Federal Supply Class:
5305

National Item Identification Number:
012194124

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:

9332878

19200

US ARMY ARDEC RDECOM

Techincal Specification:

DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.278 INCHES NOMINAL
CHAMFER ANGLE	37.5 DEGREES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.500 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.082 INCHES NOMINAL
HARDNESS RATING	80.0 ROCKWELL B MINIMUM OVERALL
HEAD DIAMETER	0.222 INCHES NOMINAL
HEAD HEIGHT	0.136 INCHES NOMINAL
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	N0.66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	30000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.138 INCHES
WIDTH ACROSS FLATS	0.110 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE AND MIL-C-13924,CLASS 4 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE AND OXIDE OVERALL
THREAD LENGTH	0.222 INCHES NOMINAL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	32

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