4820-00-491-3047

Find complete technical information, availability, and procurement data for: 4820-00-491-3047
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-491-3047

Item Name Code

05488

Assigment Date

09/21/1970 (55 years ago)

right-hand 2nd end thread direction, disk flow control device, spring disk loading method, 250.0 fahrenheit single response maximum operating temp, right-hand 1st end thread direction

Product Characteristics

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

Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: disk
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: plain (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded external pipe 1st end
Connection Type: threaded external pipe 2nd end
Maximum Operating Pressure: 125.0 pounds per square inch single response
Nominal Thread Size: 1.500 inches 2nd end
Nominal Thread Size: 2.000 inches 1st end
Opening Pressure Setting: 30.0 pounds per square inch
Material: copper alloy body
Material: steel flow control device
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-840-5145	No Name Available	10/01/1992
4820-01-321-8106	No Name Available	02/01/1997

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
240-1-1-21N30	Safety Relief Valve
260-1-1/2IN	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-491-3047?

The FSCG of the NSN 4820-00-491-3047 is 4820

Does the NSN 4820-00-491-3047 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-491-3047 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 4820-00-491-3047 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-491-3047 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 4820-00-491-3047 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Sep 21, 1970