4520-01-443-3719 HEATING ELEMENT,ELECTRICAL,NONIM Index 6145-01-443-3721 WIRE,ELECTRICAL

National Stock Number:
5305-01-443-3720

Federal Supply Class:
5305

National Item Identification Number:
014433720

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:
206642-209004TRANSISTOR DEVICES INC
206642-20AF43TRANSISTOR DEVICES INC FLORIDA DIV
SS-10901-120GCW4GLOBE ELECTRONIC HARDWARE, INC.
SS-10901-1261000GLOBE FASTENERS INC


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.138 INCHES
THREAD QUANTITY PER INCH32
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.219 INCHES NOMINAL
FASTENER LENGTH0.589 INCHES MINIMUM AND
0.604 INCHES MAXIMUM
MATERIALSTEEL COMP 203EZ OR
STEEL COMP 303 OR
STEEL COMP 303MA OR
STEEL COMP 303 PLUS X OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HEAD STYLEFLAT FILLISTER
HEAD DIAMETER0.281 INCHES NOMINAL
HEAD HEIGHT0.047 INCHES NOMINAL
INTERNAL DRIVE STYLESLOT
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY1
FIRST DIAMETER FROM HEAD0.090 INCHES MINIMUM AND
0.095 INCHES MAXIMUM
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER0.370 INCHES MINIMUM AND
0.375 INCHES MAXIMUM


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