4820-01-281-1641

Find complete technical information, availability, and procurement data for: 4820-01-281-1641
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-281-1641

Item Name Code

22113

Assigment Date

06/17/1988 (38 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.

flat seating surface shape, 1.625 inches single threaded portion nominal thread size, 2a single threaded portion thread class, lower special features, copper alloy overall material

Product Characteristics

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

Thread Class: 2a single threaded portion
Nominal Thread Size: 1.625 inches single threaded portion
Seating Surface Shape: flat
Special Features: lower
Material: copper alloy overall
Material: rubber buna n seat
Style Designator: threaded flanged

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-161-9616	No Name Available	08/01/2005

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
255-00	Valve Seat
255-02	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-281-1641?

The FSCG of the NSN 4820-01-281-1641 is 4820

Does the NSN 4820-01-281-1641 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-281-1641 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 4820-01-281-1641 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-281-1641 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 4820-01-281-1641 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Jun 17, 1988