D10H/S1/SP 11/2

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-304-8228

Item Name Code

05488

Assigment Date

07/27/1989 (37 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.

100.0 fahrenheit single response maximum operating temp, round with holes all ends flange shape, disk flow control device, automatic valve operation method, 4 all ends bolt hole quantity

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
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 100.0 fahrenheit single response
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.500 inches
Adjustable Pressure Range: +49.0 to 56.0 pounds per square inch
Maximum Operating Pressure: 285.0 pounds per square inch single response
Nominal Outside Diameter: 5.000 inches 2nd end
Nominal Outside Diameter: 7.500 inches 1st end
Nominal Thickness: 0.562 inches 2nd end
Nominal Thickness: 0.750 inches 1st end
First Connection Face To Centerline Distance: 4.875 inches
Bolt Hole Nominal Diameter: 0.625 inches 2nd end
Bolt Hole Nominal Diameter: 0.750 inches 1st end
Second Connection Face To Centerline Distance: 5.125 inches
Bolt Circle Nominal Diameter: 3.875 inches 2nd end
Bolt Circle Nominal Diameter: 6.000 inches 1st end
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 2.875 inches 2nd end
Raised Face Nominal Diameter: 5.000 inches 1st end
Material: steel corrosion resisting overall
Media For Which Designed: air 1st response
Media For Which Designed: steam 2nd response
Style Designator: angle 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
D10H/S1/SP 1-1/2X3 49T56PSI	Safety Relief Valve
D10H/S1/SP 11/2	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-304-8228?

The FSCG of the NSN 4820-01-304-8228 is 4820

Does the NSN 4820-01-304-8228 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-304-8228 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 4820-01-304-8228 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-304-8228 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 4820-01-304-8228 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Jul 27, 1989