803-1385721-12

View detailed technical data, stock status, and sourcing information for: 803-1385721-12
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-482-8906

Item Name Code

05487

Assigment Date

02/05/1971 (55 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.

disk flow control device, 425.0 fahrenheit 1st response maximum operating temp, socket with brazing ring (pipe) all ends connection style, 150.0 fahrenheit 2nd response maximum operating temp, 0.250 inches all ends nominal pipe size accommodated

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
Maximum Operating Temp: 150.0 fahrenheit 2nd response
Maximum Operating Temp: 425.0 fahrenheit 1st response
Connection Style: socket with brazing ring (pipe) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal or vertical
Valve Size: 0.250 inches
Maximum Operating Pressure: 200.0 pounds per square inch 2nd response
Maximum Operating Pressure: 400.0 pounds per square inch 1st response
Material: copper alloy 922 body
Material: copper alloy 922 seat
Material: nickel alloy r-405 flow control device
Material Document And Classification: qq-n-281 fed spec single material response flow control device
Material Document And Classification: qq-c-390,alloy d4/d/ fed spec single material response body
Material Document And Classification: qq-c-390,alloy d4/d/ fed spec single material response seat
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru
Test Data Document: "81349-mil-s-901 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-089-7673	No Name Available	03/01/1985
4820-00-542-2865	No Name Available	07/01/1988
4820-01-018-3861	No Name Available	03/01/1982
5315-01-186-1063	No Name Available	07/01/1992
4820-01-216-6717	No Name Available	09/01/1988

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
424WS1-4BRZ	Check Valve
426WS1-4BRZ	Check Valve
4DP-2041-A PIEC	Check Valve
6184-24	Check Valve
64DP-2041-A PIECE 32 1/4IN	Check Valve
803-1385721-12	Check Valve
810-1385721 1/4IN	Check Valve
MILW509-1/4	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-482-8906?

The FSCG of the NSN 4820-00-482-8906 is 4820

Does the NSN 4820-00-482-8906 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-482-8906 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 4820-00-482-8906 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-482-8906 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 4820-00-482-8906 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Feb 5, 1971