4820-00-866-8078

Find complete technical information, availability, and procurement data for: 4820-00-866-8078
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-866-8078

Item Name Code

22113

Assigment Date

01/01/1960 (66 years ago)

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

0.289 inches minimum and 0.296 inches maximum body inside diameter, 0.330 inches minimum and 0.340 inches maximum body outside diameter, 0.075 inches minimum and 0.085 inches maximum flange seat to disk end height, 0.105 inches minimum and 0.135 inches maximum under flange height, 0.595 inches minimum and 0.605 inches maximum flange diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Flange Diameter: 0.595 inches minimum and 0.605 inches maximum
Body Outside Diameter: 0.330 inches minimum and 0.340 inches maximum
Body Inside Diameter: 0.289 inches minimum and 0.296 inches maximum
Flange Seat To Disk End Height: 0.075 inches minimum and 0.085 inches maximum
Under Flange Height: 0.105 inches minimum and 0.135 inches maximum
Seating Surface Shape: flat
Special Features: flange corner chamfered
Material: steel overall
Style Designator: plain flanged

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
361029	Valve Seat

FAQs

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

What is the FSCG of the NSN 4820-00-866-8078?

The FSCG of the NSN 4820-00-866-8078 is 4820

Does the NSN 4820-00-866-8078 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-00-866-8078 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 4820-00-866-8078 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-866-8078 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 4820-00-866-8078 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960