4820-00-738-4445

Find complete technical information, availability, and procurement data for: 4820-00-738-4445
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-738-4445

Item Name Code

22113

Assigment Date

01/01/1961 (65 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

1.238 inches minimum and 1.244 inches maximum body inside diameter, 2.588 inches minimum and 2.598 inches maximum flange diameter, 2.046 inches minimum and 2.078 inches maximum body outside diameter, 0.289 inches minimum and 0.294 inches maximum seat radius, 0.685 inches minimum and 0.691 inches maximum flange seat to disk end height

Product Characteristics

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

Flange Diameter: 2.588 inches minimum and 2.598 inches maximum
Body Outside Diameter: 2.046 inches minimum and 2.078 inches maximum
Body Inside Diameter: 1.238 inches minimum and 1.244 inches maximum
Seat Radius: 0.289 inches minimum and 0.294 inches maximum
Flange Seat To Disk End Height: 0.685 inches minimum and 0.691 inches maximum
Under Flange Height: 0.923 inches minimum and 0.933 inches maximum
Style Designator: plain flanged

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
101B209RCPC1	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-738-4445?

The FSCG of the NSN 4820-00-738-4445 is 4820

Does the NSN 4820-00-738-4445 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-738-4445 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 4820-00-738-4445 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-738-4445 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 4820-00-738-4445 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961