4820-00-328-8180

Find complete technical information, availability, and procurement data for: 4820-00-328-8180
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-328-8180

Item Name Code

05488

Assigment Date

12/09/1973 (52 years ago)

3a 1st end thread class, 3b 2nd end thread class, poppet flow control device, right-hand 2nd end thread direction, 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 1st end
Thread Class: 3b 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Disk Loading Method: spring
Valve Discharge Flow Rate: 2.0 gallons per minute
Connection Style: flareless (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal boss 2nd end
Features Provided: valve stem lock shield and pressure tight outlet side
Thread Quantity Per Inch: 18 1st end
Thread Quantity Per Inch: 18 2nd end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.562 inches 1st end
Nominal Thread Size: 0.562 inches 2nd end
Seat Angle: 18.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Nominal Outside Diameter Tube Accommodated: 0.375 inches 1st end
Nominal Outside Diameter Tube Accommodated: 0.375 inches 2nd end
Media For Which Designed: fuel/oil, hydrocarbon single response
Surface Treatment: paint
Thread Series Designator: unjf 2nd end
Thread Series Designator: unjf 1st 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
A51H9190-1	Safety Relief Valve
HP1207100-1	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-328-8180?

The FSCG of the NSN 4820-00-328-8180 is 4820

Does the NSN 4820-00-328-8180 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-328-8180 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 4820-00-328-8180 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-328-8180 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 4820-00-328-8180 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Dec 9, 1973