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National Stock Number:
5305-00-855-2014
Federal Supply Class:
5305
National Item Identification Number:
008552014
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:
| 6863074 | 73342 | ALLISON TRANSMISSION INC | | 6863074 | K0680 | ROLLS-ROYCE AIRLINES | | BLT1894 | K0680 | ROLLS-ROYCE AIRLINES |
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Techincal Specification:
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 | | FASTENER LENGTH | 0.375 INCHES NOMINAL | | FIRST DIAMETER FROM HEAD | 0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM | | HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL | | HEAD DIAMETER | 0.270 INCHES NOMINAL | | HEAD HEIGHT | 0.150 INCHES NOMINAL | | HEAD STYLE | PAN NO. 2 | | INTERNAL DRIVE STYLE | SLOT | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | NOMINAL THREAD DIAMETER | 0.164 INCHES | | THREAD CLASS | 3A | | THREAD LENGTH | 0.225 INCHES MINIMUM | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 36 | | THREAD SERIES DESIGNATOR | UNF |
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