4320-00-398-6500

Find complete technical information, availability, and procurement data for: 4320-00-398-6500
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-398-6500

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.

6.767 inches minimum and 6.768 inches maximum body inside diameter, 7.672 inches minimum and 7.702 inches maximum flange diameter, 0.938 inches nominal overall length, 0.062 inches nominal outside right corner chamfer length, 7.248 inches minimum and 7.250 inches maximum body outside diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Chamfer Length: 0.062 inches nominal outside right corner
Overall Length: 0.938 inches nominal
Flange Diameter: 7.672 inches minimum and 7.702 inches maximum
Body Outside Diameter: 7.248 inches minimum and 7.250 inches maximum
Body Inside Diameter: 6.767 inches minimum and 6.768 inches maximum
Center Flange Thickness: 0.247 inches minimum and 0.249 inches maximum
Corner Shape: chamfered outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Chamfer Angle: 45.0 degrees nominal outside right corner
Material: copper alloy

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
CA7920-25-1	Wearing Ring
CS4320-0117	Wearing Ring

FAQs

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

What is the FSCG of the NSN 4320-00-398-6500?

The FSCG of the NSN 4320-00-398-6500 is 4320

Does the NSN 4320-00-398-6500 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-398-6500 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 4320-00-398-6500 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-398-6500 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 4320-00-398-6500 was assigned to the Federal Catalog?

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