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Last Modified: Jul 06, 2020

Part Number 421452-6 Externally Relieved Body Screw

National Stock Number: 5305-00-090-1798

421452-6 Cross Reference Parts

MFG Part Number ISC RNVC RNCC HCC MSDS SADC DAC

421452-6

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Summary Information (click on this NSN number for detailed information: 5305-00-090-1798)

Definition: Externally Relieved Body Screw, also referenced with federal logistics item name code 1852: 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.
Federal Supply Class (FSC): 5305
NIIN: 00-090-1798 (000901798)
NMF Description: BOLTS/NUTS/SCREWS NOI I/S
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