D139-8-941 ITEM 4/9

View detailed technical data, stock status, and sourcing information for: D139-8-941 ITEM 4/9
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-207-0468

Item Name Code

22113

Assigment Date

04/26/1985 (41 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.

9.760 inches nominal body outside diameter, 8.000 inches nominal body inside diameter, rubber buna n seat material, 2.660 inches nominal overall height, 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.

Overall Height: 2.660 inches nominal
Body Outside Diameter: 9.760 inches nominal
Body Inside Diameter: 8.000 inches nominal
Seating Surface Shape: flat
Material: rubber buna n seat
Style Designator: plain

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-408-9050	No Name Available	06/18/2013
4820-01-208-2845	No Name Available	02/01/1988

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
230-206-080-139-000	Valve Seat
230-206-080-139-300	Valve Seat
D139-8-941 ITEM 4/9	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-207-0468?

The FSCG of the NSN 4820-01-207-0468 is 4820

Does the NSN 4820-01-207-0468 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-207-0468 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 4820-01-207-0468 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-207-0468 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 4820-01-207-0468 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Fri, Apr 26, 1985