4820-01-426-2479

Find complete technical information, availability, and procurement data for: 4820-01-426-2479
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-426-2479

Item Name Code

05487

Assigment Date

03/07/1996 (30 years ago)

A valve designed specifically so the diaphragm seals the flow stream from the valve operating mechanism. The flow is controlled by the lifting of the diaphragm from or compressing it against an integral seat. For packless diaphragm valves which utilize a diaphragm as packing and a disk to control the flow, see valve, y.

366.0 fahrenheit 1st response maximum operating temp, disk flow control device, strategic sealift conversion ships class end item identification, 2.500 inches all ends nominal pipe size accommodated, 406.0 fahrenheit 2nd response maximum operating temp

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 all ends
Flow Control Device: disk
Maximum Operating Temp: 366.0 fahrenheit 1st response
Maximum Operating Temp: 406.0 fahrenheit 2nd response
End Item Identification: strategic sealift conversion ships class
Connection Style: socket (pipe) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 150.0 pounds per square inch 1st response
Maximum Operating Pressure: 300.0 pounds per square inch 2nd response
Material: copper alloy 836 body
Material: plastic polytetrafluoroethylene flow control device
Material: plastic polytetrafluoroethylene seat
Material Document And Classification: astmb-62 assn std single material response body
Media For Which Designed: steam 1st response
Media For Which Designed: water-oil-gas 2nd response
Style Designator: straight thru

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
S-433-Y2-1/2IN	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-426-2479?

The FSCG of the NSN 4820-01-426-2479 is 4820

Does the NSN 4820-01-426-2479 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-426-2479 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 4820-01-426-2479 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-426-2479 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 4820-01-426-2479 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, Mar 7, 1996