D559A-4D-100

View detailed technical data, stock status, and sourcing information for: D559A-4D-100
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-194-2648

Item Name Code

05488

Assigment Date

11/12/1984 (41 years ago)

3a all ends thread class, poppet flow control device, 280.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, plain (tube) all ends connection style

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 all ends
Thread Direction: right-hand all ends
Flow Control Device: poppet
Maximum Operating Temp: 280.0 fahrenheit single response
Connection Style: plain (tube) all ends
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Thread Quantity Per Inch: 20 all ends
Adjustable Pressure Range: +0.5 to 150.0 pounds per square inch
Maximum Operating Pressure: 15.0 pounds per square inch single response
Nominal Thread Size: 0.438 inches all ends
Opening Pressure Setting: 100.0 pounds per square inch
Special Features: furnished with deflector cap
Material: aluminum alloy 2024 body
Media For Which Designed: air 1st response
Media For Which Designed: fuel/oil, hydrocarbon 2nd response
Media For Which Designed: helium 3rd response
Media For Which Designed: hydrogen 4th response
Media For Which Designed: nitrogen, gaseous 5th response
Style Designator: angle
Thread Series Designator: unj all ends

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
D559A-4D-100	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-194-2648?

The FSCG of the NSN 4820-01-194-2648 is 4820

Does the NSN 4820-01-194-2648 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-194-2648 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 4820-01-194-2648 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-194-2648 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 4820-01-194-2648 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Mon, Nov 12, 1984