4820-01-300-8511

Find complete technical information, availability, and procurement data for: 4820-01-300-8511
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-300-8511

Item Name Code

05487

Assigment Date

05/19/1989 (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.

unthreaded internal pipe all ends connection type, socket (pipe) all ends connection style, 0.250 inches all ends nominal pipe size accommodated, disk flow control device, 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.

Nominal Pipe Size Accommodated: 0.250 inches all ends
Flow Control Device: disk
Connection Style: socket (pipe) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Material: steel comp 410 flow control device
Material: steel corrosion resisting or steel comp 303 body
Media For Which Designed: hydraulic fluid, mineral base 1st response
Media For Which Designed: hydraulic fluid, petroleum base 2nd response
Media For Which Designed: hydraulic fluid, phosphate-ester base 3rd response
Media For Which Designed: hydraulic fluid, silicate-ester base 4th 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
330576 ASSY A	Check Valve
54415	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-300-8511?

The FSCG of the NSN 4820-01-300-8511 is 4820

Does the NSN 4820-01-300-8511 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-300-8511 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 4820-01-300-8511 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-300-8511 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 4820-01-300-8511 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Fri, May 19, 1989