4820-00-446-3505

Find complete technical information, availability, and procurement data for: 4820-00-446-3505
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-446-3505

Item Name Code

05487

Assigment Date

01/01/1961 (65 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.

150.0 fahrenheit 2nd response maximum operating temp, -20.0 fahrenheit minimum operating temp, disk flow control device, right-hand all ends thread direction, 550.0 fahrenheit 1st response maximum operating temp

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: disk
Maximum Operating Temp: 150.0 fahrenheit 2nd response
Maximum Operating Temp: 550.0 fahrenheit 1st response
Minimum Operating Temp: -20.0 fahrenheit
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 1st response
Maximum Operating Pressure: 400.0 pounds per square inch 2nd response
Nominal Thread Size: 1.250 inches all ends
Special Features: swing type; y-pattern
Material: copper alloy 922 body
Material: copper alloy 922 flow control device
Material Document And Classification: astmcub000 assn std single material response body
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru
Thread Series Designator: nptf all ends
Furnished Items And Quantity: 1 cap

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-843-0459	No Name Available	02/05/1969
4820-00-882-7145	No Name Available	12/03/1971

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
0605 SZ 1 1/4 IN	Check Valve
201Y 1-1/4IN	Check Valve
254 1-1/4IN	Check Valve
420 1-1/4IN	Check Valve
554Y 1-1/4IN	Check Valve
560Y 1-1/4IN	Check Valve
B-345 1-1/4IN	Check Valve
END35PC121	Check Valve
ENF35PC121	Check Valve
ENJ35PC121	Check Valve
FIG 762-A SIZE 1 1/4 IN	Check Valve
IB949-1 1-4	Check Valve
SF137-1-1 1-4	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-446-3505?

The FSCG of the NSN 4820-00-446-3505 is 4820

Does the NSN 4820-00-446-3505 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-446-3505 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 4820-00-446-3505 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-446-3505 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 4820-00-446-3505 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961