4820-00-842-0511

Find complete technical information, availability, and procurement data for: 4820-00-842-0511
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-842-0511

Item Name Code

22113

Assigment Date

12/23/1966 (59 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.

3.938 inches nominal body outside diameter, 3.236 inches nominal body inside diameter, 1.685 inches nominal under flange height, 4.751 inches nominal flange diameter, 1.260 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: 4.751 inches nominal
Body Outside Diameter: 3.938 inches nominal
Body Inside Diameter: 3.236 inches nominal
Flange Seat To Disk End Height: 1.260 inches nominal
Under Flange Height: 1.685 inches nominal
Seat Angle In Deg: 50.000 nominal
Seating Surface Shape: angular
Material: steel overall

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
439B877	Valve Seat
439B877-004	Valve Seat
439B877PC4	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-842-0511?

The FSCG of the NSN 4820-00-842-0511 is 4820

Does the NSN 4820-00-842-0511 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-842-0511 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 4820-00-842-0511 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-842-0511 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 4820-00-842-0511 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Dec 23, 1966