4820-00-821-9001

Find complete technical information, availability, and procurement data for: 4820-00-821-9001
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-821-9001

Item Name Code

05488

Assigment Date

01/01/1962 (64 years ago)

0.250 inches 1st end nominal pipe size accommodated, poppet flow control device, right-hand 1st end thread direction, 33.0 cubic feet per minute valve discharge flow rate, 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.

Nominal Pipe Size Accommodated: 0.250 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 33.0 cubic feet per minute
Maximum Operating Temp: 450.0 fahrenheit 1st response
Maximum Operating Temp: 450.0 fahrenheit 2nd response
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic
Connection Type: threaded internal pipe 1st end
Features Provided: pressure tight outlet side
Thread Quantity Per Inch: 18 1st end
Maximum Operating Pressure: 275.0 pounds per square inch 1st response
Maximum Operating Pressure: 275.0 pounds per square inch 2nd response
Nominal Thread Size: 0.250 inches 1st end
Opening Pressure Setting: 30.0 pounds per square inch
Material: copper alloy body
Material: copper alloy seat
Material: copper alloy stem
Media For Which Designed: air 1st response
Media For Which Designed: gas, inert 2nd response
Style Designator: straight thru
Thread Series Designator: npt 1st end
Reference Number Differentiating Characteristics: as differentiated by valve size and set pressure

FAQs

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

What is the FSCG of the NSN 4820-00-821-9001?

The FSCG of the NSN 4820-00-821-9001 is 4820

Does the NSN 4820-00-821-9001 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-821-9001 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 4820-00-821-9001 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-821-9001 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 4820-00-821-9001 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962