4820-00-306-8102

Find complete technical information, availability, and procurement data for: 4820-00-306-8102
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-306-8102

Item Name Code

05487

Assigment Date

10/19/1973 (52 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.

3a 2nd end thread class, right-hand 2nd end thread direction, 3a 1st end thread class, right-hand 1st end thread direction, poppet flow control device

Product Characteristics

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

Thread Class: 3a 1st end
Thread Class: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: external seat for gasket seal (boss) 2nd end
Connection Style: external seat for gasket seal (boss) 1st end
Valve Operation Method: automatic
Connection Type: threaded external boss 1st end
Connection Type: threaded external boss 2nd end
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 20 2nd end
Maximum Operating Pressure: 15.0 pounds per square inch single response
Nominal Thread Size: 0.688 inches 1st end
Nominal Thread Size: 0.719 inches 2nd end
Material: steel comp 630 body
Material Document And Classification: ams 5643 assn std single material response body
Media For Which Designed: hydraulic fluid, mineral base single response
Surface Treatment: passivate
Style Designator: straight thru
Thread Series Designator: unjs 2nd end

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
10109251	Check Valve
4C2680-2	Check Valve
ST7M261-8	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-306-8102?

The FSCG of the NSN 4820-00-306-8102 is 4820

Does the NSN 4820-00-306-8102 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-306-8102 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-306-8102 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-306-8102 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 4820-00-306-8102 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Oct 19, 1973