940-2

View detailed technical data, stock status, and sourcing information for: 940-2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-6029

Item Name Code

05488

Assigment Date

01/01/1961 (65 years ago)

disk flow control device, 1.000 inches 1st end nominal pipe size accommodated, spring disk loading method, right-hand 1st end thread direction, plain (pipe) 1st end connection style

Product Characteristics

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

Nominal Pipe Size Accommodated: 1.000 inches 1st end
Thread Direction: right-hand 1st end
Flow Control Device: disk
Disk Loading Method: spring
Connection Style: plain (pipe) 1st end
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe 1st end
Maximum Operating Pressure: 100.0 pounds per square inch single response
Nominal Thread Size: 1.000 inches 1st end
Opening Pressure Setting: 3.0 pounds per square inch
Material: copper alloy overall
Media For Which Designed: steam single response
Style Designator: straight thru
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Below is a list of NSNs that have been officially superseded by this NSN: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
4820-00-293-7544	No Name Available	12/12/1971

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
940-2	Safety Relief Valve
FIG12SIZE1-3PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-6029?

The FSCG of the NSN 4820-00-287-6029 is 4820

Does the NSN 4820-00-287-6029 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-6029 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 4820-00-287-6029 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-6029 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 4820-00-287-6029 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961