845-1889587ASSEMBLYB1-4IN

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-115-9763

Item Name Code

05487

Assigment Date

07/17/1981 (45 years ago)

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes:valve (1), relief, pressure and temperature.

150.0 fahrenheit single response maximum operating temp, threaded renewable seat ring type, 0.250 inches all ends nominal pipe size accommodated, socket with brazing ring (pipe) all ends connection style, 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.

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 150.0 fahrenheit single response
Connection Style: socket with brazing ring (pipe) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal
Maximum Operating Pressure: 700.0 pounds per square inch single response
Material: copper alloy 922 body
Material: nickel alloy flow control device
Material Document And Classification: qq-c-390,alloy d4d fed spec single material response body
Media For Which Designed: water-oil-gas single response
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
11-03-2080	Check Valve
2620-902 ASSY B 1-4IN	Check Valve
845-1889587 ASSY B 1-4IN	Check Valve
845-1889587ASSEMBLYB1-4IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-115-9763?

The FSCG of the NSN 4820-01-115-9763 is 4820

Does the NSN 4820-01-115-9763 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-115-9763 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 4820-01-115-9763 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-115-9763 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 4820-01-115-9763 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Fri, Jul 17, 1981