4820-01-331-8666

Find complete technical information, availability, and procurement data for: 4820-01-331-8666
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-331-8666

Item Name Code

05485

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.

plain,optional end(pipe) all ends connection style, disk flow control device, right-hand all ends thread direction, inside screw bonnet type, threaded 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.

Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: inside screw
Bonnet Attachment Method: threaded
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: manual
Connection Type: threaded internal pipe all ends
Maximum Operating Pressure: 150.0 pounds per square inch 2nd response
Maximum Operating Pressure: 300.0 pounds per square inch 1st response
Nominal Thread Size: 0.500 inches all ends
Special Features: stem material: bronze silicon
Material: bronze body
Material: bronze stem
Material: plastic polytetrafluoroethylene flow control device
Media For Which Designed: steam 2nd response
Media For Which Designed: water-oil-gas 1st response
Style Designator: straight thru
Thread Series Designator: npt all 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
3240SJ-.50IN	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-331-8666?

The FSCG of the NSN 4820-01-331-8666 is 4820

Does the NSN 4820-01-331-8666 have a Schedule B code assigned?

Yes, the Schedule B code is 8481805090

Does NSN 4820-01-331-8666 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 4820-01-331-8666 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-331-8666 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 4820-01-331-8666 was assigned to the Federal Catalog?

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