4820-01-330-8121

Find complete technical information, availability, and procurement data for: 4820-01-330-8121
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-330-8121

Item Name Code

20962

Assigment Date

12/09/1990 (35 years ago)

A panel mounted dual function control, three way valve which incorporates a check valve to protect the emergency supply reservoir and to control the supply and exhaust ports.

gasket seal(boss) 2nd end connection style, 70.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, external seat for gasket seal (boss) 1st end connection style, manual valve operation method

Product Characteristics

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

Thread Direction: right-hand all ends
Maximum Operating Temp: 70.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 1st end
Connection Style: gasket seal(boss) 2nd end
Valve Operation Method: manual
Connection Type: threaded external boss 1st end
Connection Type: threaded internal boss 2nd end
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Material: copper alloy body
Material: plastic polytetrafluoroethylene packing
Material: plastic polytetrafluoroethylene seat
Material: steel comp 316 flow control device
Material: steel comp 316 stem
Style Designator: straight thru
Thread Series Designator: npt 1st end
Thread Series Designator: nptf 2nd end

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
4M4F-B6LJ-BP	Ball Valve
5520684	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-330-8121?

The FSCG of the NSN 4820-01-330-8121 is 4820

Does the NSN 4820-01-330-8121 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801085

Does NSN 4820-01-330-8121 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 4820-01-330-8121 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-330-8121 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 4820-01-330-8121 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sun, Dec 9, 1990