4820-00-136-4575

Find complete technical information, availability, and procurement data for: 4820-00-136-4575
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-136-4575

Item Name Code

22113

Assigment Date

01/17/1969 (57 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.

flat seating surface shape, 26.688 inches minimum and 26.750 inches maximum flange diameter, 23.250 inches nominal body inside diameter, 0.125 inches nominal flange seat to disk end height, 5.969 inches nominal under flange 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: 26.688 inches minimum and 26.750 inches maximum
Body Inside Diameter: 23.250 inches nominal
Flange Seat To Disk End Height: 0.125 inches nominal
Under Flange Height: 5.969 inches nominal
Seating Surface Shape: flat
Material: rubber buna n seat
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
104-30675-27	Valve Seat
A50-24-4A	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-136-4575?

The FSCG of the NSN 4820-00-136-4575 is 4820

Does the NSN 4820-00-136-4575 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-136-4575 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 4820-00-136-4575 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-136-4575 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 4820-00-136-4575 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Jan 17, 1969