803-1385637-102AF MOD

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-209-0271

Item Name Code

05487

Assigment Date

05/22/1985 (41 years ago)

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

300.0 fahrenheit single response maximum operating temp, weight disk loading method, 15 all ends bolt hole quantity, disk flow control device, threaded renewable seat ring type

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
Disk Loading Method: weight
Renewable Seat Ring Type: threaded
Bolt Hole Quantity: 15 all ends
Maximum Operating Temp: 300.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Mounting Position: horizontal
Valve Size: 10.000 inches
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Outside Diameter: 15.000 inches all ends
Face To Face Distance: 21.750 inches
Nominal Thickness: 1.438 inches all ends
Bolt Hole Nominal Diameter: 0.812 inches all ends
Bolt Circle Nominal Diameter: 13.562 inches all ends
Flange Face Design: plain all ends
Material: copper alloy body
Material: copper alloy flow control device
Material: nickel alloy seat
Media For Which Designed: water-oil-gas single response
Style Designator: straight thru flanged 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
803-1385637-102AF	Check Valve
803-1385637-102AF MOD	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-209-0271?

The FSCG of the NSN 4820-01-209-0271 is 4820

Does the NSN 4820-01-209-0271 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-209-0271 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 4820-01-209-0271 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-209-0271 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 4820-01-209-0271 was assigned to the Federal Catalog?

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