4820-01-197-1977

Find complete technical information, availability, and procurement data for: 4820-01-197-1977
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-197-1977

Item Name Code

05483

Assigment Date

12/19/1984 (41 years ago)

4 all ends bolt hole quantity, 800.0 fahrenheit single response maximum operating temp, outside screw-yoke bonnet type, bolted bonnet attachment method, 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
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Bolt Hole Quantity: 4 all ends
Maximum Operating Temp: 800.0 fahrenheit single response
Valve Operation Method: manual
Flange Shape: round with holes all ends
Connection Type: flange all ends
Valve Size: 2.500 inches
Maximum Operating Pressure: 285.0 pounds per square inch single response
Nominal Outside Diameter: 7.000 inches all ends
Nominal Thickness: 0.880 inches all ends
First Connection Face To Centerline Distance: 4.250 inches
Bolt Hole Nominal Diameter: 0.625 inches all ends
Second Connection Face To Centerline Distance: 4.250 inches
Bolt Circle Nominal Diameter: 5.500 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.062 inches all ends
Raised Face Nominal Diameter: 4.125 inches all ends
Special Features: stop-check type
Material: steel body
Material Document And Classification: astm a216 wcb assn std single material response body
Media For Which Designed: water-oil-gas single response
Style Designator: angle flanged ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-278-8630	No Name Available	08/01/1992

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
153F-3-SC-2.5IN	Angle Valve
71FCB-9-SC 2 1/2IN	Angle Valve
71FCB-9-SC-2.50IN	Angle Valve
8775/153F-3-SC-2.5	Angle Valve

FAQs

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

What is the FSCG of the NSN 4820-01-197-1977?

The FSCG of the NSN 4820-01-197-1977 is 4820

Does the NSN 4820-01-197-1977 have a Schedule B code assigned?

Yes, the Schedule B code is 8481803090

Does NSN 4820-01-197-1977 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 4820-01-197-1977 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-197-1977 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 4820-01-197-1977 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Wed, Dec 19, 1984