5305-01-301-1958, SCREW,EXTERNALLY RELIEVED BODY

5305-01-301-1957 SCREW,EXTERNALLY RELIEVED BODY

5306-01-301-1959 BOLT,SHEAR

National Stock Number:
5305-01-301-1958

Federal Supply Class:
5305

National Item Identification Number:
013011958

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:

003-009016-001

26916

NORTHROP GRUMMAN SYSTEMS CORPORATION

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
THREAD QUANTITY PER INCH	56
THREAD SERIES DESIGNATOR	UNC
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.520 INCHES NOMINAL
COLOR	BLACK HEAD
COUNTERSINK ANGLE	80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY	1
FASTENER LENGTH	0.650 INCHES NOMINAL
FIRST DIAMETER FROM HEAD	0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
HEAD DIAMETER	0.147 INCHES MINIMUM AND 0.172 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
MATERIAL	STEEL COMP 301 OVERALL OR STEEL COMP 302 OVERALL OR STEEL COMP 302B OVERALL OR STEEL COMP 303 OVERALL OR STEEL COMP 303SE OVERALL OR STEEL COMP 304 OVERALL OR STEEL COMP 304L OVERALL OR STEEL COMP 305 OVERALL OR STEEL COMP 308 OVERALL OR STEEL COMP 309 OVERALL OR STEEL COMP 309S OVERALL OR STEEL COMP 310 OVERALL OR STEEL COMP 310S OVERALL OR STEEL COMP 314 OVERALL OR STEEL COMP 316 OVERALL OR STEEL COMP 316L OVERALL OR STEEL COMP 317 OVERALL OR STEEL COMP 321 OVERALL OR STEEL COMP 347 OVERALL OR STEEL COMP 348 OVERALL OR STEEL COMP 384 OVERALL OR STEEL COMP 385 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.086 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924 CL 4 MIL SPEC SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	OXIDE HEAD
SURFACE TREATMENT	PASSIVATE FASTENER
THREAD LENGTH	0.130 INCHES MINIMUM
THREAD CLASS	2A

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