A8-VA-087

View detailed technical data, stock status, and sourcing information for: A8-VA-087
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-086-2833

Item Name Code

05487

Assigment Date

11/24/1979 (46 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.

right-hand all ends thread direction, plain (pipe) all ends connection style, poppet flow control device, spring disk loading method, automatic valve operation method

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: poppet
Disk Loading Method: spring
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 2500.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Special Features: minimum operating temperature 40 degrees
Material: copper alloy overall
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru
Thread Series Designator: npt all ends

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
6022521-1	Check Valve
A8-30F-24 ITEM 14	Check Valve
A8-VA-087	Check Valve
B-4CP2-1	Check Valve
B4CP2-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-086-2833?

The FSCG of the NSN 4820-01-086-2833 is 4820

Does the NSN 4820-01-086-2833 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-086-2833 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 4820-01-086-2833 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-086-2833 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 4820-01-086-2833 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Sat, Nov 24, 1979