NS-4038 1-4IN

View detailed technical data, stock status, and sourcing information for: NS-4038 1-4IN
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-216-2875

Item Name Code

05487

Assigment Date

09/07/1985 (40 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.

0.250 inches 2nd end nominal pipe size accommodated, automatic valve operation method, 160.0 fahrenheit single response maximum operating temp, disk flow control device, streamlined with one brazing ring (pipe) all ends connection style

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 2nd end
Flow Control Device: disk
Maximum Operating Temp: 160.0 fahrenheit single response
Connection Style: streamlined with one 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 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
2621-927-10 ASSY A, 0.25IN	Check Valve
90078000	Check Valve
NS-4038 1-4IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-216-2875?

The FSCG of the NSN 4820-01-216-2875 is 4820

Does the NSN 4820-01-216-2875 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-216-2875 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 4820-01-216-2875 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-216-2875 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 4820-01-216-2875 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Sep 7, 1985