R10AL2N211-D501

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-247-0080

Item Name Code

05488

Assigment Date

12/23/1986 (39 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.

bolted bonnet attachment method, 8 all ends bolt hole quantity, inside screw bonnet type, 200.0 fahrenheit single response maximum operating temp, disk flow control device

Product Characteristics

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

Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 8 all ends
Maximum Operating Temp: 200.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 3.000 inches
Adjustable Pressure Range: +48.0 to 59.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 6.620 inches 2nd end
Nominal Outside Diameter: 9.000 inches 1st end
Nominal Thickness: 0.500 inches all ends
First Connection Face To Centerline Distance: 6.375 inches
Bolt Hole Nominal Diameter: 0.562 inches all ends
Second Connection Face To Centerline Distance: 5.750 inches
Bolt Circle Nominal Diameter: 5.500 inches 2nd end
Bolt Circle Nominal Diameter: 6.560 inches 1st end
Flange Face Design: plain all ends
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: steel corrosion resisting stem
Media For Which Designed: water-oil-gas single response
Style Designator: angle flanged ends
Furnished Items And Quantity: 1 lever

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
D50100	Safety Relief Valve
D50100-R10AL2N211	Safety Relief Valve
R10AL2N211-D501	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-247-0080?

The FSCG of the NSN 4820-01-247-0080 is 4820

Does the NSN 4820-01-247-0080 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-247-0080 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 4820-01-247-0080 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-247-0080 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 4820-01-247-0080 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Tue, Dec 23, 1986