4820-01-273-8838

Find complete technical information, availability, and procurement data for: 4820-01-273-8838
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-273-8838

Item Name Code

05485

Assigment Date

03/02/1988 (38 years ago)

A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes:all covers not specifically designed to provide access for the purposes listed above.

manual valve operation method, bolted bonnet attachment method, 4 all ends bolt hole quantity, disk flow control device, outside screw-yoke 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: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 4 all ends
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 2.500 inches
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Outside Diameter: 7.000 inches all ends
Face To Face Distance: 8.000 inches
Nominal Thickness: 0.438 inches all ends
Bolt Hole Nominal Diameter: 0.750 inches all ends
Bolt Circle Nominal Diameter: 5.500 inches all ends
Flange Face Design: plain all ends
Special Features: includes limit switch
Material: copper alloy 865 stem
Material: copper alloy 922 or copper alloy 836 body
Material Document And Classification: astm b61 assn std 1st material response or astm b62 assn std 2nd material response body
Material Document And Classification: astm b147,alloy 8a assn std single material response seat
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru flanged ends
Furnished Items And Quantity: 1 handwheel

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
ASI-B122A-L/S-2.5	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-273-8838?

The FSCG of the NSN 4820-01-273-8838 is 4820

Does the NSN 4820-01-273-8838 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801070

Does NSN 4820-01-273-8838 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 4820-01-273-8838 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-273-8838 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 4820-01-273-8838 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, Mar 2, 1988