4820-01-460-8780

Find complete technical information, availability, and procurement data for: 4820-01-460-8780
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-460-8780

Item Name Code

16996

Assigment Date

11/19/1998 (27 years ago)

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

180.0 fahrenheit temp rating, 4 first end bolt hole quantity, 2.410 inches minimum and 2.590 inches maximum second connection face to centerline distance, 2.160 inches minimum and 2.234 inches maximum first connection face to centerline distance, "angle give "adqm" and "adqn" only if flanged one or two ends" body style

Product Characteristics

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

Body Style: "angle give "adqm" and "adqn" only if flanged one or two ends"
Temp Rating: 180.0 fahrenheit
First End Bolt Hole Quantity: 4
First Connection Face To Centerline Distance: 2.160 inches minimum and 2.234 inches maximum
Second Connection Face To Centerline Distance: 2.410 inches minimum and 2.590 inches maximum
Flow Control Device: disk, circular
End Connection Quantity: 1
Special Features: used on valve 1/4 relief valve type 1741-t

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
20402.01.E.1050	Pressure and Temper Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-460-8780?

The FSCG of the NSN 4820-01-460-8780 is 4820

Does the NSN 4820-01-460-8780 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-460-8780 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 4820-01-460-8780 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-460-8780 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 4820-01-460-8780 was assigned to the Federal Catalog?

It was assigned 27 years ago, on Thu, Nov 19, 1998