4820-01-187-1126

Find complete technical information, availability, and procurement data for: 4820-01-187-1126
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-187-1126

Item Name Code

05488

Assigment Date

08/18/1984 (42 years ago)

4 1st end bolt hole quantity, 1.000 inches 2nd end nominal pipe size accommodated, inside spring bonnet type, disk flow control device, bolted bonnet attachment method

Product Characteristics

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

Nominal Pipe Size Accommodated: 1.000 inches 2nd end
Flow Control Device: disk
Bonnet Type: inside spring
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 4 1st end
Maximum Operating Temp: 425.0 fahrenheit single response
Connection Style: socket 2nd end
Valve Operation Method: automatic
Flange Shape: round with holes 1st end
Connection Type: flange 1st end
Connection Type: unthreaded internal pipe 2nd end
Adjustable Pressure Range: +91.0 to 105.0 pounds per square inch
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 4.250 inches 1st end
Nominal Thickness: 0.375 inches 1st end
Bolt Hole Nominal Diameter: 0.625 inches 1st end
Bolt Circle Nominal Diameter: 3.125 inches 1st end
Flange Face Design: plain 1st end
Material: bronze stem
Material: copper alloy body
Material: copper alloy seat
Material: nickel alloy flow control device
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: angle

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
8041-100M-41	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-187-1126?

The FSCG of the NSN 4820-01-187-1126 is 4820

Does the NSN 4820-01-187-1126 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-187-1126 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 4820-01-187-1126 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-187-1126 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 4820-01-187-1126 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Aug 18, 1984