4820-01-278-8635

Find complete technical information, availability, and procurement data for: 4820-01-278-8635
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-278-8635

Item Name Code

05485

Assigment Date

05/10/1988 (38 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.

socket (tube) all ends connection style, 450.0 fahrenheit single response maximum operating temp, diaphragm flow control device, inside screw bonnet type, integral 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.

Flow Control Device: diaphragm
Bonnet Type: inside screw
Bonnet Attachment Method: integral
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: socket (tube) all ends
Valve Operation Method: manual
Connection Type: unthreaded internal tube all ends
Maximum Operating Pressure: 500.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 0.875 inches all ends
Special Features: non-magnetic screw in red hand wheel; bronze phosphor flow control device
Material: bronze flow control device
Material: copper alloy 377 body
Material: steel corrosion resisting stem
Media For Which Designed: refrigerant 12 1st response
Media For Which Designed: refrigerant 22 2nd response
Style Designator: straight thru

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
6297-S	Globe Valve

FAQs

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

What is the FSCG of the NSN 4820-01-278-8635?

The FSCG of the NSN 4820-01-278-8635 is 4820

Does the NSN 4820-01-278-8635 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801070

Does NSN 4820-01-278-8635 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 4820-01-278-8635 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-278-8635 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 4820-01-278-8635 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Tue, May 10, 1988