5139T-12TB-50

View detailed technical data, stock status, and sourcing information for: 5139T-12TB-50
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-099-1676

Item Name Code

05488

Assigment Date

08/14/1980 (45 years ago)

An item of any peripheral shape having flanges or groove(s) on its outer perimeter to provide a self-retaining characteristic when inserted in a hole, clamp, or the like. Designed for the purpose of protecting and/or insulating wires, cables and other items passing through it. Excludes:bushing, nonmetallic; bumper; and insulator bushing.

-40.0 fahrenheit 1st response maximum operating temp, 3a 1st end thread class, right-hand all ends thread direction, poppet flow control device, 3b 2nd end thread class

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 all ends
Flow Control Device: poppet
Maximum Operating Temp: -40.0 fahrenheit 1st response
Maximum Operating Temp: 250.0 fahrenheit 2nd response
Connection Style: flared (tube) 1st end
Connection Style: gasket seal(boss) 2nd end
Valve Operation Method: automatic
Connection Type: threaded external tube 1st end
Connection Type: threaded internal boss 2nd end
Thread Quantity Per Inch: 12 all ends
Maximum Operating Pressure: 2400.0 pounds per square inch single response
Nominal Thread Size: 1.062 inches all ends
Seat Angle: 37.0 degrees 1st end
Opening Pressure Setting: 50.0 pounds per square inch
Material: steel comp 303 overall
Material Document And Classification: aisi 303 fed spec single material response overall
Media For Which Designed: fuel/oil, hydrocarbon single response
Style Designator: straight thru note: to be used for valve bodies of one section only.
Thread Series Designator: un 2nd end
Thread Series Designator: unj 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
5139T-12TB-50	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-099-1676?

The FSCG of the NSN 4820-01-099-1676 is 4820

Does the NSN 4820-01-099-1676 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-099-1676 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 4820-01-099-1676 contain precious materials?

Precious metal content is unknown

Does NSN 4820-01-099-1676 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 4820-01-099-1676 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Thu, Aug 14, 1980