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National Stock Number: 5305-01-300-8894
Federal Supply Class: 5305
National Item Identification Number: 013008894
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:
003-009400-001 | 26916 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.108 INCHES NOMINAL | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.085 INCHES NOMINAL | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.090 INCHES NOMINAL | CRITICALITY CODE JUSTIFICATION | FEAT | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 | FIRST DIAMETER FROM HEAD | 0.092 INCHES NOMINAL | HEAD STYLE | PAN | INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 | MATERIAL | STEEL CORROSION RESISTING OVERALL | NOMINAL THREAD DIAMETER | 0.112 INCHES | SPECIAL FEATURES | 135 ITEM | SECOND DIAMETER FROM HEAD | 0.074 INCHES NOMINAL | THREAD SERIES DESIGNATOR | UNC | THREAD QUANTITY PER INCH | 40 |
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