UN-3-050-B-B-8

View detailed technical data, stock status, and sourcing information for: UN-3-050-B-B-8
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-283-4910

Item Name Code

05487

Assigment Date

08/06/1988 (37 years ago)

spring disk loading method, 400.0 fahrenheit single response maximum operating temp, poppet flow control device, plain, optional end (pipe) all ends connection style, right-hand all ends 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 Direction: right-hand all ends
Flow Control Device: poppet
Disk Loading Method: spring
Maximum Operating Temp: 400.0 fahrenheit single response
Connection Style: plain, optional end (pipe) all ends
Valve Operation Method: automatic
Connection Type: threaded internal pipe all ends
Mounting Position: horizontal or vertical
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Opening Pressure Setting: 8.0 pounds per square inch
Special Features: lg 2.712 in.
Material: copper alloy body
Media For Which Designed: acetylene 2nd response
Media For Which Designed: air 1st response
Media For Which Designed: ammonia, gaseous 4th response
Media For Which Designed: carbon dioxide 5th response
Style Designator: straight thru
Thread Series Designator: npt 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
11024339	Check Valve
249B-4PP-8	Check Valve
UN-3-050-B-B-8	Check Valve

FAQs

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

What is the FSCG of the NSN 4820-01-283-4910?

The FSCG of the NSN 4820-01-283-4910 is 4820

Does the NSN 4820-01-283-4910 have a Schedule B code assigned?

Yes, the Schedule B code is 8481301090

Does NSN 4820-01-283-4910 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 4820-01-283-4910 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-283-4910 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 4820-01-283-4910 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, Aug 6, 1988