34-2-1-2

View detailed technical data, stock status, and sourcing information for: 34-2-1-2
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4234

Item Name Code

05487

Assigment Date

01/01/1963 (63 years ago)

406.0 fahrenheit 1st response maximum operating temp, 150.0 fahrenheit 2nd response maximum operating temp, disk flow control device, right-hand all ends thread direction, 2.500 inches 1st end nominal pipe size accommodated

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: 2.500 inches 1st end
Thread Direction: right-hand all ends
Flow Control Device: disk
Maximum Operating Temp: 150.0 fahrenheit 2nd response
Maximum Operating Temp: 406.0 fahrenheit 1st response
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 125.0 pounds per square inch 1st response
Maximum Operating Pressure: 200.0 pounds per square inch 2nd response
Nominal Thread Size: 2.500 inches all ends
Material: copper alloy 836 overall
Material Document And Classification: astm b-62 assn std single material response overall
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru
Thread Series Designator: npt all ends
Specification/Standard Data: 59646-mss sp-80 manufacturers standard
Nondefinitive Spec/Std Data: 2.0500 size and 3 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-00-068-1451	No Name Available	09/01/2023
4820-00-287-3537	No Name Available	05/01/1977
4820-00-287-4372	No Name Available	01/01/1988
4820-00-419-8507	No Name Available	09/01/2023
4820-00-789-2561	No Name Available	02/04/1972
4820-00-840-7444	No Name Available	02/05/1969
4820-01-151-3683	No Name Available	09/01/1993

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
34-2-1-2	Check Valve
578-2.5	Check Valve
B-319 2 1/2IN	Check Valve
B-319 SZ 2 1/2 IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4234?

The FSCG of the NSN 4820-00-287-4234 is 4820

Does the NSN 4820-00-287-4234 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-00-287-4234 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 4820-00-287-4234 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-287-4234 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 4820-00-287-4234 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963