4820-01-294-1791

Find complete technical information, availability, and procurement data for: 4820-01-294-1791
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-294-1791

Item Name Code

22113

Assigment Date

02/11/1989 (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.

0.500 inches nominal single threaded portion thread length, angular seating surface shape, 2a single threaded portion thread class, 12 single threaded portion thread quantity per inch, 4.375 inches single threaded portion nominal thread size

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
Thread Length: 0.500 inches nominal single threaded portion
Thread Quantity Per Inch: 12 single threaded portion
Nominal Thread Size: 4.375 inches single threaded portion
Seating Surface Shape: angular
Material: nickel alloy overall
Material Document And Classification: qq-n-288,compb fed spec single material response overall
Thread Series Designator: un 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
803-1385541-034-04	Valve Seat
803-1385541-034-26	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-01-294-1791?

The FSCG of the NSN 4820-01-294-1791 is 4820

Does the NSN 4820-01-294-1791 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-294-1791 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 4820-01-294-1791 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-294-1791 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 4820-01-294-1791 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, Feb 11, 1989