4820-01-311-8390

Find complete technical information, availability, and procurement data for: 4820-01-311-8390
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-311-8390

Item Name Code

22113

Assigment Date

12/06/1989 (36 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.

plastic polytetrafluoroethylene seat material, plain style designator, flat seating surface shape

Product Characteristics

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

Seating Surface Shape: flat
Material: plastic polytetrafluoroethylene seat
Style Designator: plain

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
372425	Valve Seat
NC372425	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-311-8390?

The FSCG of the NSN 4820-01-311-8390 is 4820

Does the NSN 4820-01-311-8390 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-311-8390 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 4820-01-311-8390 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-311-8390 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 4820-01-311-8390 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Dec 6, 1989