4820-01-377-6258

Find complete technical information, availability, and procurement data for: 4820-01-377-6258
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-377-6258

Item Name Code

20962

Assigment Date

07/22/1993 (33 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.

3000.0 pounds per square inch single response maximum operating pressure, butt weld pipe all ends connection type, beveled (pipe) all ends connection style, manual valve operation method, 1.500 inches all ends nominal pipe size accommodated

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: 1.500 inches all ends
Connection Style: beveled (pipe) all ends
Valve Operation Method: manual
Connection Type: butt weld pipe all ends
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Material: copper alloy 632 stem
Material: plastic seat
Material: steel comp 304 flow control device
Material: steel corrosion resisting body
Material Document And Classification: astm a351 assn std single material response body
Material Document And Classification: qq-c-465, aly c63200 fed spec single material response stem
Material Document And Classification: qq-s-763, cl 304 fed spec single material response flow control device
Style Designator: angle
Furnished Items And Quantity: 1 lever and 1 locking device

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
211063620	Ball Valve
2643-785-05 ASSY A	Ball Valve
556-6408988-AYA W/LK DVC AYAB	Ball Valve

FAQs

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

What is the FSCG of the NSN 4820-01-377-6258?

The FSCG of the NSN 4820-01-377-6258 is 4820

Does the NSN 4820-01-377-6258 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803070

Does NSN 4820-01-377-6258 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 4820-01-377-6258 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-377-6258 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 4820-01-377-6258 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Thu, Jul 22, 1993