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National Stock Number:
5305-01-055-6212
Federal Supply Class:
5305
National Item Identification Number:
010556212
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:
| 0N199172 | 98230 | NATIONAL SECURITY AGENCY |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.250 INCHES NOMINAL | | DISTANCE FROM CENTERLINE TO FLAT | 0.015 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.530 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.085 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C NOMINAL OVERALL | | HEAD DIAMETER | 0.219 INCHES NOMINAL | | HEAD HEIGHT | 0.085 INCHES NOMINAL | | HEAD STYLE | DEE | | MATERIAL | STEEL OVERALL | | SPECIAL FEATURES | KY-57,5810-01-157-2279 | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.190 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC |
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