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National Stock Number:
5305-01-063-6280
Federal Supply Class:
5305
National Item Identification Number:
010636280
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:
| SM-C-805320 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.760 INCHES NOMINAL | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FASTENER LENGTH | 1.120 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.290 INCHES NOMINAL | | HEAD HEIGHT | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.360 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 16 |
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