4820-01-621-8959

Find complete technical information, availability, and procurement data for: 4820-01-621-8959
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-621-8959

Item Name Code

16996

Assigment Date

09/20/2013 (12 years ago)

"angle give "adqm" and "adqn" only when flanged both ends" body style, socket first end style designator, 250.0 fahrenheit temp rating, threaded internal pipe first end connection type, 0.25 inches first end 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.

Body Style: "angle give "adqm" and "adqn" only when flanged both ends"
Temp Rating: 250.0 fahrenheit
First End Connection Type: threaded internal pipe
First End Style Designator: socket
First End Nominal Pipe Size Accommodated: 0.25 inches
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Flow Control Device: poppet
End Connection Quantity: 2
Adjustable Pressure Range: +25.0 to 350.0 pounds per square inch
Temp Adjustability: not adjustable
First End Thread Series Designator: npt
Part Name Assigned By Controlling Agency: air safety valve
Material: copper alloy body
Material: rubber synthetic flow control 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
ST25-1A200	Pressure and Temper Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-621-8959?

The FSCG of the NSN 4820-01-621-8959 is 4820

Does the NSN 4820-01-621-8959 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-621-8959 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 4820-01-621-8959 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-621-8959 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 4820-01-621-8959 was assigned to the Federal Catalog?

It was assigned 12 years ago, on Fri, Sep 20, 2013