4820-00-402-4788

Find complete technical information, availability, and procurement data for: 4820-00-402-4788
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-402-4788

Item Name Code

05490

Assigment Date

04/20/1970 (56 years ago)

3a 2nd end thread class, 160.0 fahrenheit single response maximum operating temp, right-hand 2nd end thread direction, two-way two port 90 degree plug turn flow style, 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 Class: 3a 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Style: two-way two port 90 degree plug turn
Maximum Operating Temp: 160.0 fahrenheit single response
Connection Style: double threaded section boss fitting gasket with locknut sealing (boss) 2nd end
Connection Style: inverted flare(tube) 1st end
Valve Operation Method: manual
Connection Type: threaded external boss 2nd end
Connection Type: threaded internal tube 1st end
Features Provided: nonadjustable rotation
Thread Quantity Per Inch: 20 2nd end
Thread Quantity Per Inch: 20 1st end
Maximum Operating Pressure: 100.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches 1st end
Nominal Thread Size: 0.438 inches 2nd end
Seat Angle: 37.0 degrees 1st end
Nominal Outside Diameter Tube Accommodated: 0.250 inches 1st end
Special Features: inlet end bulkheadtype
Material: aluminum body
Material: aluminum seat
Material: aluminum stem
Material: rubber synthetic packing
Media For Which Designed: fuel/oil, hydrocarbon 1st response
Media For Which Designed: oil, hydraulic 2nd response
Thread Series Designator: unf 1st end
Thread Series Designator: unf 2nd end

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
57A1-1	Plug Valve

FAQs

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

What is the FSCG of the NSN 4820-00-402-4788?

The FSCG of the NSN 4820-00-402-4788 is 4820

Does the NSN 4820-00-402-4788 have a Schedule B code assigned?

Yes, the Schedule B code is 8481805090

Does NSN 4820-00-402-4788 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 4820-00-402-4788 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-402-4788 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 4820-00-402-4788 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Mon, Apr 20, 1970