N20178PC4

View detailed technical data, stock status, and sourcing information for: N20178PC4
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-028-3930

Item Name Code

22534

Assigment Date

01/01/1963 (63 years ago)

A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.

4320-00-028-3930, wearing ring

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2930-00-353-8183	No Name Available	01/01/1963
2930-00-363-7737	No Name Available	01/01/1963

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
3214573	Wearing Ring
K-3214573	Wearing Ring
N20178PC4	Wearing Ring
N20178PC5	Wearing Ring
N25177PC4	Wearing Ring
N25177PC5	Wearing Ring
N4642PC5	Wearing Ring
N9142PC5	Wearing Ring
N9642PC5	Wearing Ring
Y25EAV6AX5	Wearing Ring

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4320-00-028-3930?

The FSCG of the NSN 4320-00-028-3930 is 4320

Does the NSN 4320-00-028-3930 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-028-3930 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 4320-00-028-3930 contain precious materials?

Item does not contain precious metal.

Does NSN 4320-00-028-3930 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 4320-00-028-3930 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963