4320-00-075-7440

Find complete technical information, availability, and procurement data for: 4320-00-075-7440
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-075-7440

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.

2.250 inches nominal largest external anchor flange radius, 0.938 inches nominal overall length, 3.729 inches nominal body inside diameter, 4.234 inches nominal body outside diameter, 0.125 inches nominal distance below centerline

Product Characteristics

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

Overall Length: 0.938 inches nominal
Body Outside Diameter: 4.234 inches nominal
Body Inside Diameter: 3.729 inches nominal
Largest External Anchor Flange Radius: 2.250 inches nominal
Distance Below Centerline: 0.125 inches nominal
Corner Shape: square all corners
Surface Finish: 63.0 microinches inside
Surface Finish: 63.0 microinches outside
Surface Finish: 63.0 microinches left face
Surface Finish: 63.0 microinches right face
Material: iron
Material Document And Classification: mil-i-18397,class a mil spec single material response

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
2HCS251PC22A	Wearing Ring
55-22268-18U/S	Wearing Ring
676-1764-049	Wearing Ring
676-1764-261	Wearing Ring
676-1764-262	Wearing Ring

FAQs

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

What is the FSCG of the NSN 4320-00-075-7440?

The FSCG of the NSN 4320-00-075-7440 is 4320

Does the NSN 4320-00-075-7440 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-075-7440 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 4320-00-075-7440 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-075-7440 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 4320-00-075-7440 was assigned to the Federal Catalog?

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