4820-01-163-8556

Find complete technical information, availability, and procurement data for: 4820-01-163-8556
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-163-8556

Item Name Code

22113

Assigment Date

10/08/1983 (42 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.

nickel alloy overall material, 4.719 inches nominal body outside diameter, 5.200 inches nominal flange diameter, 0.266 inches nominal 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: 5.200 inches nominal
Body Outside Diameter: 4.719 inches nominal
Flange Seat To Disk End Height: 0.266 inches nominal
Material: nickel alloy overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-126-4623	No Name Available	05/01/1990

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
1W1197B	Valve Seat
37689866	Valve Seat
3W11978	Valve Seat
43CS4MWS	Valve Seat
CE-1W1197B	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-163-8556?

The FSCG of the NSN 4820-01-163-8556 is 4820

Does the NSN 4820-01-163-8556 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-163-8556 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 4820-01-163-8556 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-163-8556 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 4820-01-163-8556 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Oct 8, 1983