4320-00-604-1990

Find complete technical information, availability, and procurement data for: 4320-00-604-1990
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-604-1990

Item Name Code

61082

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.

0.7460 inches nominal first slot length, 1.6250 inches nominal body inside diameter, 4.2480 inches nominal overall length, 0.6000 inches nominal first slot width, 1.9070 inches nominal 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.

Slot Width: 0.6000 inches nominal first
Slot Length: 0.7460 inches nominal first
Overall Length: 4.2480 inches nominal
Body Outside Diameter: 1.9070 inches nominal
Body Inside Diameter: 1.6250 inches nominal
Flange Outside Diameter: 2.3437 inches nominal
Flange Width: 1.1280 inches nominal
Corner Shape: chamfered outside right corner
Corner Shape: square left flange body corner
Corner Shape: square left flange outside right corner
Corner Shape: square outside left corner
Corner Shape: square inside left corner
Corner Shape: square inside right corner
Antirotation/Lubrication Type And Quantity: 2 slot
Material: nickel overall
Style Designator: solid, external flange one end

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
55-22344-67	Pump Shaft Sleeve
L-2183	Pump Shaft Sleeve
R918PC13	Pump Shaft Sleeve

FAQs

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

What is the FSCG of the NSN 4320-00-604-1990?

The FSCG of the NSN 4320-00-604-1990 is 4320

Does the NSN 4320-00-604-1990 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-604-1990 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 4320-00-604-1990 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-604-1990 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 4320-00-604-1990 was assigned to the Federal Catalog?

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