4820-01-331-8669

Find complete technical information, availability, and procurement data for: 4820-01-331-8669
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-331-8669

Item Name Code

05486

Assigment Date

12/29/1990 (35 years ago)

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

outside screw-yoke bonnet type, spring disk loading method, bolted bonnet attachment method, disk flow control device, 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
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Disk Loading Method: spring
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
Mounting Position: horizontal or vertical
Valve Size: 1.000 inches
Maximum Operating Pressure: 1480.0 pounds per square inch single response
Nominal Outside Diameter: 4.875 inches all ends
Face To Face Distance: 8.500 inches
Nominal Thickness: 0.688 inches all ends
Bolt Hole Nominal Diameter: 0.750 inches all ends
Bolt Circle Nominal Diameter: 3.500 inches all ends
Flange Face Design: raised straight all ends
Raised Face Nominal Height: 0.250 inches all ends
Raised Face Nominal Diameter: 2.000 inches all ends
Material: steel body
Material: steel corrosion resisting flow control device
Style Designator: straight thru 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
846 1IN300PSI	Stop-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-331-8669?

The FSCG of the NSN 4820-01-331-8669 is 4820

Does the NSN 4820-01-331-8669 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-331-8669 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 4820-01-331-8669 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-331-8669 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 4820-01-331-8669 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Sat, Dec 29, 1990