R4V10-535-10-A1

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-268-1950

Item Name Code

05488

Assigment Date

11/25/1987 (38 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.

spring disk loading method, poppet flow control device, automatic valve operation method, +150.0 to 5000.0 pounds per square inch adjustable pressure range

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flow Control Device: poppet
Disk Loading Method: spring
Valve Operation Method: automatic
Adjustable Pressure Range: +150.0 to 5000.0 pounds per square inch

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
R4V10-535-10-A1	Safety Relief Valve
R4V10-539-10-A1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-268-1950?

The FSCG of the NSN 4820-01-268-1950 is 4820

Does the NSN 4820-01-268-1950 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-268-1950 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 4820-01-268-1950 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-268-1950 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 4820-01-268-1950 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, Nov 25, 1987