30121 PIECE 2 8IN

View detailed technical data, stock status, and sourcing information for: 30121 PIECE 2 8IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-293-6910

Item Name Code

22113

Assigment Date

02/03/1989 (37 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.

0.750 inches nominal under flange height, flat seating surface shape, 9.125 inches nominal flange diameter, 1.094 inches nominal flange seat to disk end height, 8.687 inches nominal body inside 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: 9.125 inches nominal
Body Inside Diameter: 8.687 inches nominal
Flange Seat To Disk End Height: 1.094 inches nominal
Under Flange Height: 0.750 inches nominal
Seating Surface Shape: flat
Material: nickel alloy overall
Material Document And Classification: astm b164 alloy r-405 assn std single material response seat
Style Designator: threaded 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
30121 PIECE 2 8IN	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-293-6910?

The FSCG of the NSN 4820-01-293-6910 is 4820

Does the NSN 4820-01-293-6910 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-293-6910 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 4820-01-293-6910 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-293-6910 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 4820-01-293-6910 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Fri, Feb 3, 1989