4820-00-005-4902

Find complete technical information, availability, and procurement data for: 4820-00-005-4902
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-005-4902

Item Name Code

22113

Assigment Date

06/09/1972 (54 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.

Thread Size: 0.5 inches single threaded portion, Body Inside Diameter: 0.25", steel material, thread length: 0.437", Flange Diameter: 0.718"

Product Characteristics

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

Style Designator: Threaded flanged
Thread Class: 2a single threaded portion
Material: Steel
Thread Length: 0.437 inches single threaded portion
Flange Diameter: 0.718 inches
Body Inside Diameter: 0.25 inches
Flange Seat To Disk End Height: 0.125 inches
Under Flange Height: 0.5 inches
Nominal Thread Size: 0.5 inches single threaded portion
Seating Surface Shape: Flat
Thread Series Designator: Unf single threaded portion

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
2002-12A	Valve Seat
SH12-3N25	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-005-4902?

The FSCG of the NSN 4820-00-005-4902 is 4820

Does the NSN 4820-00-005-4902 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-005-4902 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 4820-00-005-4902 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-005-4902 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 4820-00-005-4902 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Jun 9, 1972