D49565PARTR10AF5F512-CS1

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-227-1897

Item Name Code

05488

Assigment Date

03/01/1986 (40 years ago)

4 all ends bolt hole quantity, disk flow control device, threaded bonnet attachment method, 250.0 fahrenheit single response maximum operating temp, inside screw bonnet 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
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 250.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.000 inches
Adjustable Pressure Range: +59.0 to 72.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Outside Diameter: 4.250 inches all ends
Nominal Thickness: 0.500 inches all ends
First Connection Face To Centerline Distance: 4.500 inches
Bolt Hole Nominal Diameter: 0.625 inches all ends
Second Connection Face To Centerline Distance: 4.125 inches
Bolt Circle Nominal Diameter: 3.125 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 2.000 inches all ends
Material: steel comp 303 stem
Material: steel uns j03002 body
Material Document And Classification: astm b-61 assn std single material response body
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
D49565PARTR10AF5F512-CS1	Safety Relief Valve
R10AF5F512-CS1A	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-227-1897?

The FSCG of the NSN 4820-01-227-1897 is 4820

Does the NSN 4820-01-227-1897 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-227-1897 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 4820-01-227-1897 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-227-1897 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 4820-01-227-1897 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Mar 1, 1986