470-206-025-100-003

View detailed technical data, stock status, and sourcing information for: 470-206-025-100-003
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-062-0138

Item Name Code

22113

Assigment Date

01/01/1963 (63 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.

3.800 inches nominal body outside diameter, 3.800 inches nominal flange diameter, 2.500 inches nominal body inside diameter, 0.460 inches nominal flange seat to disk end height, 3.137 inches nominal seat radius

Product Characteristics

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

Flange Diameter: 3.800 inches nominal
Body Outside Diameter: 3.800 inches nominal
Body Inside Diameter: 2.500 inches nominal
Seat Radius: 3.137 inches nominal
Flange Seat To Disk End Height: 0.460 inches nominal
Under Flange Height: 1.450 inches nominal
Seating Surface Shape: radial
Special Features: two holes 0.438 in. dia equally spaced on periphery
Material: rubber synthetic overall
Style Designator: plain flanged

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-913-1376	No Name Available	09/01/1982

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
470-206-025-100-003	Valve Seat
87K1000025	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-062-0138?

The FSCG of the NSN 4820-00-062-0138 is 4820

Does the NSN 4820-00-062-0138 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-062-0138 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 4820-00-062-0138 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-062-0138 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 4820-00-062-0138 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963