4820-01-331-8685

Find complete technical information, availability, and procurement data for: 4820-01-331-8685
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-331-8685

Item Name Code

05488

Assigment Date

12/29/1990 (35 years ago)

A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.

plain (pipe) 1st end connection style, right-hand all ends thread direction, disk flow control device, 406.0 fahrenheit single response maximum operating temp, spring disk loading method

Product Characteristics

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

Thread Direction: right-hand all ends
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 406.0 fahrenheit single response
Connection Style: plain (pipe) 1st end
Connection Style: plain,optional end(pipe) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded internal pipe 2nd end
Adjustable Pressure Range: +60.0 to 275.0 pounds per square inch
Maximum Operating Pressure: 275.0 pounds per square inch single response
Nominal Thread Size: 2.000 inches all ends
Material: bronze body
Media For Which Designed: air 1st response
Media For Which Designed: gas, natural 3rd response
Media For Which Designed: steam 2nd response
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 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
6010 2IN	Safety Relief Valve
6010JH01-KM0275	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-331-8685?

The FSCG of the NSN 4820-01-331-8685 is 4820

Does the NSN 4820-01-331-8685 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-331-8685 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 4820-01-331-8685 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-331-8685 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 4820-01-331-8685 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Dec 29, 1990