4820-01-209-0291

Find complete technical information, availability, and procurement data for: 4820-01-209-0291
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-209-0291

Item Name Code

20520

Assigment Date

05/22/1985 (41 years ago)

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

poppet flow control device, 3a all ends thread class, 0.106 inches nominal aperture diameter, right-hand all ends thread direction, 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 Class: 3a all ends
Thread Direction: right-hand all ends
Aperture Diameter: 0.106 inches nominal
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: flareless all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal
Thread Quantity Per Inch: 18 all ends
Maximum Operating Pressure: 5000.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches all ends
Seat Angle: 12.0 degrees all ends
Material: steel corrosion resisting body
Style Designator: straight thru
Thread Series Designator: unj all ends

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
417-6SS-5-.106	Restrictor Check Valve
J417A-6SS-5-.106	Restrictor Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-209-0291?

The FSCG of the NSN 4820-01-209-0291 is 4820

Does the NSN 4820-01-209-0291 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-209-0291 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 4820-01-209-0291 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-209-0291 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 4820-01-209-0291 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Wed, May 22, 1985