4820-01-018-1718

Find complete technical information, availability, and procurement data for: 4820-01-018-1718
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-018-1718

Item Name Code

05487

Assigment Date

03/21/1976 (50 years ago)

1.781 inches 2nd end nominal width, disk flow control device, 4 1st end bolt hole quantity, 2.750 inches 1st end nominal width, spring disk loading 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: disk
Disk Loading Method: spring
Bolt Hole Quantity: 4 1st end
Nominal Width: 1.781 inches 2nd end
Nominal Width: 2.750 inches 1st end
Nominal Length: 2.906 inches 2nd end
Nominal Length: 2.937 inches 1st end
Valve Operation Method: automatic
Flange Shape: oval with holes 2nd end
Flange Shape: rectangular 1st end
Connection Type: flange 1st end
Connection Type: flange 2nd end
Mounting Position: horizontal or vertical
Valve Size: 2.750 inches
Nominal Thickness: 2.000 inches 1st end
Nominal Thickness: 0.875 inches 2nd end
First Connection Face To Centerline Distance: 1.500 inches
Bolt Hole Nominal Diameter: 0.312 inches all ends
Second Connection Face To Centerline Distance: 0.937 inches
Bolt Circle Nominal Diameter: 2.125 inches 2nd end
Center To Center Nominal Distance Between Bolt Holes Along Length: 2.000 inches 1st end
Center To Center Nominal Distance Between Bolt Holes Along Width: 1.875 inches 1st end
Flange Face Design: plain 1st end
Flange Face Design: plain 2nd end
Material: steel overall
Style Designator: angle 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
3P4218	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-018-1718?

The FSCG of the NSN 4820-01-018-1718 is 4820

Does the NSN 4820-01-018-1718 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-01-018-1718 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 4820-01-018-1718 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-018-1718 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 4820-01-018-1718 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Mar 21, 1976