4739B1-1

View detailed technical data, stock status, and sourcing information for: 4739B1-1
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-879-5473

Item Name Code

05490

Assigment Date

01/01/1960 (66 years ago)

two-way two port 90 degree plug turn flow style, 280.0 fahrenheit single response maximum operating temp, right-hand all ends thread direction, gasket seal(boss) all ends connection style, manual valve operation method

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 Style: two-way two port 90 degree plug turn
Maximum Operating Temp: 280.0 fahrenheit single response
Connection Style: gasket seal(boss) all ends
Valve Operation Method: manual
Connection Type: threaded internal boss all ends
Features Provided: nonadjustable rotation
Maximum Operating Pressure: 150.0 pounds per square inch single response
Nominal Thread Size: 0.250 inches all ends
Special Features: service determined by type ofservice lubricant added before use
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy seat
Material: rubber synthetic packing
Media For Which Designed: air 1st response
Media For Which Designed: carbon dioxide 2nd response
Media For Which Designed: fuel/oil, hydrocarbon 3rd response
Media For Which Designed: hydrogen 4th response
Media For Which Designed: nitrogen, gaseous 5th response
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
11-1903-1	Plug Valve
4739B1-1	Plug Valve
9259B-2PP	Plug Valve

FAQs

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

What is the FSCG of the NSN 4820-00-879-5473?

The FSCG of the NSN 4820-00-879-5473 is 4820

Does the NSN 4820-00-879-5473 have a Schedule B code assigned?

Yes, the Schedule B code is 8481801075

Does NSN 4820-00-879-5473 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 4820-00-879-5473 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-879-5473 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 4820-00-879-5473 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960