4820-01-220-1958

Find complete technical information, availability, and procurement data for: 4820-01-220-1958
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-220-1958

Item Name Code

05487

Assigment Date

11/09/1985 (40 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

right-hand all ends thread direction, 2a all ends thread class, flared (tube) all ends connection style, automatic valve operation method, disk 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.

Thread Class: 2a all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Connection Style: flared (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 37.0 degrees all ends
Material: copper alloy body
Material: copper alloy seat
Material: steel flow control device
Media For Which Designed: refrigerant, halogenated single response
Style Designator: straight thru
Thread Series Designator: unf all ends

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
F6318	Check Valve
MTS-6-3/8	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-220-1958?

The FSCG of the NSN 4820-01-220-1958 is 4820

Does NSN 4820-01-220-1958 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 4820-01-220-1958 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-220-1958 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 4820-01-220-1958 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Nov 9, 1985