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National Stock Number: 5305-01-532-8891
Federal Supply Class: 5305
National Item Identification Number: 015328891
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.
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Manufacturer Information:
23-11352-202 | 64678 | DAIMLER TRUCK NORTH AMERICA LLC |
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Techincal Specification:
HEAD DIAMETER | 0.419 INCHES MINIMUM AND 0.439 INCHES MAXIMUM | HEAD HEIGHT | 0.209 INCHES MINIMUM AND 0.219 INCHES MAXIMUM | HEAD STYLE | PAN NO. 2 | INTERNAL DRIVE STYLE | HEXAGON | NOMINAL THREAD DIAMETER | 0.250 INCHES | WIDTH ACROSS FLATS | 0.156 INCHES NOMINAL | THREAD CLASS | 2A | THREAD QUANTITY PER INCH | 20 | THREAD SERIES DESIGNATOR | UNC |
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