4820-01-139-5437

Find complete technical information, availability, and procurement data for: 4820-01-139-5437
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-139-5437

Item Name Code

05486

Assigment Date

10/04/1982 (43 years ago)

right-hand all ends thread direction, poppet flow control device, spring disk loading method, integral bonnet attachment method, inside spring bonnet type

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
Flow Control Device: poppet
Bonnet Type: inside spring
Bonnet Attachment Method: integral
Disk Loading Method: spring
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 200.0 pounds per square inch single response
Nominal Thread Size: 1.250 inches all ends
Material: copper alloy body
Material: copper alloy seat
Material: copper alloy stem
Material: rubber butadiene-acrylonitrile class nbr flow control device
Style Designator: straight thru
Thread Series Designator: ptf-sae short 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
375-1-1/2	Stop-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-139-5437?

The FSCG of the NSN 4820-01-139-5437 is 4820

Does the NSN 4820-01-139-5437 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-139-5437 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 4820-01-139-5437 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-139-5437 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 4820-01-139-5437 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Mon, Oct 4, 1982