A-2.5-150-ZZNSR

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-309-9930

Item Name Code

05487

Assigment Date

10/27/1989 (36 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.

225.0 pounds per square inch single response maximum operating pressure, disk flow control device, 250.0 fahrenheit single response maximum operating temp, automatic valve operation method, wafer mounting facility

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
Maximum Operating Temp: 250.0 fahrenheit single response
Valve Operation Method: automatic
Mounting Facility: wafer
Maximum Operating Pressure: 225.0 pounds per square inch single response
Special Features: cartridge type; 2.343 in. min flange bore; 4.875 in. od; 2.375 in. h
Material: aluminum alloy body
Material: aluminum alloy flow control device
Material: rubber butadiene-acrylonitrile class nbr seat
Media For Which Designed: water, fresh single response

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
A-2.5-150-ZZNSR	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-309-9930?

The FSCG of the NSN 4820-01-309-9930 is 4820

Does the NSN 4820-01-309-9930 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-309-9930 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 4820-01-309-9930 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-309-9930 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 4820-01-309-9930 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Oct 27, 1989