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

O-ring

Model / MPN: AS3578-446 | NSN: 5331-01-643-9263
ITAR Registered seal

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing, preformed. For noncircular items with a round cross-section, see seal, nonmetallic round section and rubber, round section.

Product Details
NATO Stock Number
5331-01-643-9263
Sold in multiples of
1 EA
DEMIL
Cross-sectional Height
Between 8.420 inches and 8.530 inches
Center Hole Diameter
Between 0.269 inches and 0.281 inches
End Application
2350-01-305-0028
Hardness Rating
Between 60.0 shore durometer a and 70.0 shore durometer a
Material
Rubber butadiene-acrylonitrile class nbr
Material Specification
Ams 7270-80 military standard single material response
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E817T2805 Ring O 10 EA 12/02/2016
SPE5E817T5119 Ring O 48 EA 01/27/2017
SPE5E818Q0183 Ring O 48 EA 12/26/2017
SPE5E818T6582 Ring O 204 EA 02/22/2018
SPE5E818T329P Ring O 550 EA 10/03/2018
SPE5E819T4199 Ring O 300 EA 01/07/2019
SPE5E820T0584 Ring O 517 EA 10/18/2019
SPE5E820T4049 Ring O 1500 EA 01/17/2020
SPE5E820T7615 Ring O 700 EA 03/30/2020

Pricing and Availability

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AS3578-446 Cross Reference