4820-00-050-1751

Find complete technical information, availability, and procurement data for: 4820-00-050-1751
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-050-1751

Item Name Code

05488

Assigment Date

01/01/1961 (65 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 1st end thread class, flared (tube) 1st end connection style, disk flow control device, automatic valve operation method, right-hand 1st end thread direction

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 Direction: right-hand 1st end
Flow Control Device: disk
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Features Provided: pressure tight outlet side
Maximum Operating Pressure: 140.0 pounds per square inch single response
Nominal Thread Size: 0.437 inches 1st end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Material: aluminum alloy and steel corrosion resisting flow control device
Material: aluminum alloy seat
Material: aluminum alloy body
Media For Which Designed: water-oil-gas single response
Style Designator: angle
Thread Series Designator: unf 1st 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
MC1635-80	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-050-1751?

The FSCG of the NSN 4820-00-050-1751 is 4820

Does the NSN 4820-00-050-1751 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-050-1751 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 4820-00-050-1751 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-050-1751 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 4820-00-050-1751 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961