002-18-10-0003-005

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-005-4954

Item Name Code

22113

Assigment Date

06/09/1972 (54 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.

0.105 inches nominal flange seat to disk end height, 0.135 inches nominal under flange height, 0.812 inches nominal body inside diameter, 1.677 inches nominal flange diameter, 1.425 inches nominal body outside diameter

Product Characteristics

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

Flange Diameter: 1.677 inches nominal
Body Outside Diameter: 1.425 inches nominal
Body Inside Diameter: 0.812 inches nominal
Flange Seat To Disk End Height: 0.105 inches nominal
Under Flange Height: 0.135 inches nominal
Seat Angle In Deg: 0.583 nominal
Seating Surface Shape: angular
Material: rubber overall
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
002-18-10-0003-0005	Valve Seat
002-18-10-0003-005	Valve Seat
008748	Valve Seat
218-10-02LUNAN	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-005-4954?

The FSCG of the NSN 4820-00-005-4954 is 4820

Does the NSN 4820-00-005-4954 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-005-4954 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 4820-00-005-4954 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-005-4954 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 4820-00-005-4954 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Jun 9, 1972