20081C51M

View detailed technical data, stock status, and sourcing information for: 20081C51M
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-285-0689

Item Name Code

05488

Assigment Date

09/06/1988 (37 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, automatic valve operation method, flange 1st end connection type, disk flow control device, unthreaded internal pipe 2nd end connection type

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: disk
Disk Loading Method: spring
Valve Operation Method: automatic
Connection Type: flange 1st end
Connection Type: unthreaded internal pipe 2nd end
Adjustable Pressure Range: +15.0 to 19.0 pounds per square inch
Special Features: valve size is 1.00 in.
Material: copper alloy body

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
20081C51M	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-285-0689?

The FSCG of the NSN 4820-01-285-0689 is 4820

Does the NSN 4820-01-285-0689 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-285-0689 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 4820-01-285-0689 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-285-0689 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 4820-01-285-0689 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Tue, Sep 6, 1988