Preformed Packing Back-up Ring

Model / MPN: N300-90 8-122 | NSN: 5330-01-582-5498

A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a packing, preformed or o-ring.

Product Details

NATO Stock Number

5330-01-582-5498

Sold in multiples of

1 EA

DEMIL

Cross Sectional Shape

Contoured face solid

Tempurature Rating

-40.0 degrees fahrenheit and 180.0 degrees fahrenheit

Cross-sectional Height

0.103 inches

Center Hole Diameter

1.112 inches

Peripheral Diameter

1.318 inches

Hardness Rating

90.0 shore durometer a

Part Name Assigned By Controlling Agency

Parback

Material

Rubber butadiene-acrylonitrile class nbr

Material Specification

Fscm 02697 n0300-90 mfr ref single material response

N300 Series Parts

Solicitations

Solicitation	Description	Qty	UOM	Close Date
SPE5EM17T2588	Up Ring, Prefor Back	455	EA	12/20/2016
SPE5E317T5449	Up Ring, Prefor Back	1405	EA	07/07/2017
SPE5E318T8300	Up Ring, Prefor Back	5000	EA	03/26/2018

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

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N300-90 8-122 Cross Reference

8-122 N0300-90
N0300-90 8-122
8-122 N0300