18A2843

View detailed technical data, stock status, and sourcing information for: 18A2843
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-278-8764

Item Name Code

35224

Assigment Date

05/11/1988 (38 years ago)

An item of various shapes (usually circular, conical, cylindrical, or rectangular) used to prevent or regulate the flow of liquids or gases through the valve. May include a retainer, screw, holder, and the like.

0.500 inches nominal flange diameter, 0.250 inches nominal shank diameter, 0.438 inches nominal flange seat to disk end height, 0.281 inches nominal under flange height, 0.531 inches nominal overall height

Product Characteristics

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

Shank Diameter: 0.250 inches nominal
Flange Diameter: 0.500 inches nominal
Overall Height: 0.531 inches nominal
Flange Seat To Disk End Height: 0.438 inches nominal
Under Flange Height: 0.281 inches nominal
Seat Angle: 45.0 degrees nominal
Style Designator: cone check

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
18A2843	Valve Disk

FAQs

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

What is the FSCG of the NSN 4820-01-278-8764?

The FSCG of the NSN 4820-01-278-8764 is 4820

Does the NSN 4820-01-278-8764 have a Schedule B code assigned?

Yes, the Schedule B code is 8481909090

Does NSN 4820-01-278-8764 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 4820-01-278-8764 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-278-8764 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 4820-01-278-8764 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Wed, May 11, 1988