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Worldwide distributor of NSN parts and consumables located in the USA.

Finishing Washer

Model / MPN: NAS390B4P | NSN: 5310-00-457-6866
ITAR Registered seal

A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.

Product Details
NATO Stock Number
5310-00-457-6866
Sold in multiples of
100 EA
DEMIL
NO
Hole Diameter
Between 0.120 inches and 0.150 inches
Outside Diameter
Between 0.280 inches and 0.320 inches
Overall Height
Between 0.063 inches and 0.093 inches
Material Thickness
Between 0.008 inches and 0.016 inches
Material
Copper alloy 268 or copper alloy 11
Material Specification
Qq-b-613 federal specification 1st material response or qq-b-613, 1/2, hard federal specification 2nd material response
Surface Treatment
Chromium or nickel
Surface Treatment Specification
Qq-c-320, cl 1, type 1 federal specification 1st treatment response or qq-n-290 federal specification 2nd treatment response
Style Designator
Finishing
390B Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E816T1159 Washer, Finishing 218 EA 11/09/2015

Pricing and Availability

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NAS390B4P Cross Reference