458-20SS2-2

View detailed technical data, stock status, and sourcing information for: 458-20SS2-2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-291-6668

Item Name Code

05487

Assigment Date

01/03/1989 (37 years ago)

A self-acting valve specifically designed for use in refrigeration systems for continual control of rate of flow of refrigerant. It may be actuated by a thermostatic element or self-actuated.

unthreaded external tube all ends connection type, socket (tube) all ends connection style, horizontal or vertical mounting position, 12.000 inches all ends nominal outside diameter tube accommodated, poppet flow control device

Product Characteristics

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

Flow Control Device: poppet
Connection Style: socket (tube) all ends
Connection Type: unthreaded external tube all ends
Mounting Position: horizontal or vertical
Nominal Outside Diameter Tube Accommodated: 12.000 inches all ends
Material: rubber butadiene-acrylonitrile class nbr packing
Material: steel corrosion resisting overall
Style Designator: straight thru

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
458-12-SS-2-20	Check Valve
458-12SS-2-20	Check Valve
458-20SS2-2	Check Valve
5312D-3-20	Check Valve
DWG 320934 PIECE 38	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-291-6668?

The FSCG of the NSN 4820-01-291-6668 is 4820

Does the NSN 4820-01-291-6668 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-291-6668 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 4820-01-291-6668 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-291-6668 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 4820-01-291-6668 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Tue, Jan 3, 1989