4820-01-147-9304

Find complete technical information, availability, and procurement data for: 4820-01-147-9304
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-147-9304

Item Name Code

05488

Assigment Date

02/25/1983 (43 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.

disk flow control device, 500.0 fahrenheit single response maximum operating temp, 3b all ends thread class, right-hand all ends thread direction, gasket seal(boss) all ends connection style

Product Characteristics

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

Thread Class: 3b all ends
Thread Direction: right-hand all ends
Flow Control Device: disk
Maximum Operating Temp: 500.0 fahrenheit single response
Connection Style: gasket seal(boss) all ends
Valve Operation Method: automatic or manual
Connection Type: threaded internal boss all ends
Thread Quantity Per Inch: 12 1st end
Nominal Thread Size: 0.750 inches 2nd end
Nominal Thread Size: 1.062 inches 1st end
Opening Pressure Setting: 80.0 pounds per square inch
Material: bronze body
Material: plastic polytetrafluoroethylene seat
Style Designator: angle
Thread Series Designator: un 1st end
Thread Series Designator: unf 2nd end
Furnished Items And Quantity: 1 lever

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
42302-3311-80	Safety Relief Valve
42302-3311-80 1-2X3-4	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-147-9304?

The FSCG of the NSN 4820-01-147-9304 is 4820

Does the NSN 4820-01-147-9304 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-147-9304 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 4820-01-147-9304 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-147-9304 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 4820-01-147-9304 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Feb 25, 1983