4820-01-189-0801

Find complete technical information, availability, and procurement data for: 4820-01-189-0801
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-189-0801

Item Name Code

05487

Assigment Date

09/11/1984 (41 years ago)

3a 1st end thread class, poppet flow control device, spring disk loading method, right-hand 1st end thread direction, 250.0 fahrenheit single 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.

Thread Class: 3a 1st end
Thread Direction: right-hand 1st end
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: flared (tube) 1st end
Valve Operation Method: automatic
Connection Type: threaded external tube all ends
Mounting Position: horizontal or vertical
Thread Quantity Per Inch: 18 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.375 inches 1st end
Seat Angle: 37.0 degrees 1st end
Opening Pressure Setting: 8.0 pounds per square inch
Material: aluminum body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: alcohol, ethyl 3rd response
Media For Which Designed: ammonia, gaseous 4th response
Media For Which Designed: carbon dioxide 5th response
Style Designator: straight thru
Thread Series Designator: unjf 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
249A-6TT-8	Check Valve
567669	Check Valve
567669-1	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-189-0801?

The FSCG of the NSN 4820-01-189-0801 is 4820

Does the NSN 4820-01-189-0801 have a Schedule B code assigned?

Yes, the Schedule B code is 8481309000

Does NSN 4820-01-189-0801 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 4820-01-189-0801 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-189-0801 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 4820-01-189-0801 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Tue, Sep 11, 1984