4820-01-181-5791

Find complete technical information, availability, and procurement data for: 4820-01-181-5791
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-181-5791

Item Name Code

22113

Assigment Date

06/12/1984 (42 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.

30.000 nominal seat angle in deg, 2a single threaded portion thread class, 1.000 inches nominal single threaded portion thread length, 11.000 inches nominal body inside diameter, 2.375 inches nominal overall height

Product Characteristics

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

Thread Class: 2a single threaded portion
Thread Length: 1.000 inches nominal single threaded portion
Overall Height: 2.375 inches nominal
Body Inside Diameter: 11.000 inches nominal
Seat Angle In Deg: 30.000 nominal
Thread Quantity Per Inch: 12 single threaded portion
Nominal Thread Size: 12.000 inches single threaded portion
Seating Surface Shape: angular
Material: nickel alloy seat
Thread Series Designator: uns single threaded portion

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
803-1385541-102-04	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-181-5791?

The FSCG of the NSN 4820-01-181-5791 is 4820

Does the NSN 4820-01-181-5791 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-181-5791 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 4820-01-181-5791 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-181-5791 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 4820-01-181-5791 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Tue, Jun 12, 1984