R10AF5F5BE-CS1-D50372

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-269-4692

Item Name Code

05488

Assigment Date

12/17/1987 (38 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.

automatic valve operation method, 4 all ends bolt hole quantity, round with holes all ends flange shape, flange all ends connection type, 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
Bolt Hole Quantity: 4 all ends
Valve Operation Method: automatic
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 1.000 inches
Adjustable Pressure Range: +45.0 to 55.0 pounds per square inch
Nominal Outside Diameter: 4.250 inches all ends
Nominal Thickness: 0.375 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: plain all ends
Material: plastic polytetrafluoroethylene packing
Material: steel body
Material: steel comp 316 stem
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
R10AF5F5BE-CS1-D50372	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-269-4692?

The FSCG of the NSN 4820-01-269-4692 is 4820

Does the NSN 4820-01-269-4692 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-269-4692 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 4820-01-269-4692 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-269-4692 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 4820-01-269-4692 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Dec 17, 1987