5306-01-266-8303 BOLT,MACHINE Index 5305-01-266-8305 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-01-266-8304

Federal Supply Class:
5305

National Item Identification Number:
012668304

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:
500252554490DEPT OF THE ARMY U S ARMY ELECTRONICS COMMAND NIGHT VISION LABORATORY


Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER0.205 INCHES NOMINAL
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.080 INCHES NOMINAL
COLORBLACK OVERALL
EXTENDED WASHER DIAMETER0.450 INCHES NOMINAL
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
EXTENDED WASHER THICKNESS0.040 INCHES NOMINAL
FASTENER LENGTH2.105 INCHES NOMINAL
FIRST DIAMETER FROM HEAD0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM
HEAD DIAMETER0.140 INCHES MINIMUM AND 0.144 INCHES MAXIMUM
HEAD HEIGHT0.275 INCHES NOMINAL
HEAD STYLEFLAT EXTENDED WASHER
HOLE CONFIGURATION STYLEROUND LONGITUDINAL HOLE
HOLE NOMINAL THREAD DIAMETER0.060 INCHES
HOLE QUANTITY1
HOLE THREAD QUANTITY PER INCH80
HOLE TYPETHREADED
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER0.164 INCHES
POINT STYLEFLAT
SECOND DIAMETER FROM HEAD0.125 INCHES NOMINAL
SPECIAL FEATURESSPECIAL FOUR POINTED END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CLASS 4 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS2A
THREAD DIRECTIONLEFT-HAND
THREAD LENGTH1.535 INCHES MINIMUM AND 1.565 INCHES MAXIMUM
THREAD QUANTITY PER INCH40
THREAD SERIES DESIGNATORUNS


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