17656P

View detailed technical data, stock status, and sourcing information for: 17656P
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-959-0305

Item Name Code

22534

Assigment Date

01/01/1962 (64 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.

5.812 inches nominal bolt circle diameter, 5.125 inches nominal body outside diameter, external flange body style, 6.499 inches nominal flange diameter, 1.000 inches nominal overall length

Product Characteristics

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

Body Style: external flange
Overall Length: 1.000 inches nominal
Bolt Circle Diameter: 5.812 inches nominal
Flange Diameter: 6.499 inches nominal
Body Outside Diameter: 5.125 inches nominal
Body Inside Diameter: 4.751 inches nominal
Left Side Flange Thickness: 0.562 inches nominal
Unthreaded Mounting Hole Diameter: 0.500 inches nominal
Corner Shape: square all corners
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
17656P	Wearing Ring
SK171559	Wearing Ring

FAQs

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

What is the FSCG of the NSN 4320-00-959-0305?

The FSCG of the NSN 4320-00-959-0305 is 4320

Does the NSN 4320-00-959-0305 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-959-0305 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 4320-00-959-0305 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-959-0305 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 4320-00-959-0305 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962