4730-01-139-4231

Find complete technical information, availability, and procurement data for: 4730-01-139-4231
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Federal Supply Group

Pipe, Tubing, Hose, and Fittings

Federal Supply Classification

4730 Hose, Pipe, Tube, Lubrication and Railing Fittings

National Stock Number

4730-01-139-4231

Item Name Code

03771

Assigment Date

10/01/1982 (43 years ago)

250.0 fahrenheit single response maximum operating temp, 2a 2nd end thread class, 2b 1st end thread class, swivel nut, flare (tube) style 3 optional end 1st end connection style, flared (tube) 2nd end 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: 2a 2nd end
Thread Class: 2b 1st end
Maximum Operating Temp: 250.0 fahrenheit single response
Connection Style: swivel nut, flare (tube) style 3 optional end 1st end
Connection Style: flared (tube) 2nd end
Leg Length: 0.766 inches nominal 2nd end
Leg Length: 1.000 inches nominal 1st end
Connection Type: threaded external tube 2nd end
Connection Type: threaded internal tube 1st end
Maximum Operating Pressure: 3000.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches all ends
Seat Angle: 12.0 degrees 1st end
Seat Angle: 37.0 degrees 2nd end
Flow Angle: 45.0 degrees
Nominal Outside Diameter Tube Accommodated: 0.312 inches all ends
Material: steel comp 12l14 overall
Material Document And Classification: 66 fed std single material response overall
Media For Which Designed: hydraulic fluid single response
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: mil-c-81562,type 1,class 3 mil spec single treatment response overall
Thread Series Designator: unf all ends
Furnished Items And Quantity: 1 tube coupling nut and 1 flared sleeve
Specification/Standard Data: 96906-ms51522 government standard and 81349-mil-f-18866 government specification

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
5V6BX-S	Tube Elbow
MS51522A5	Tube Elbow

FAQs

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

What is the FSCG of the NSN 4730-01-139-4231?

The FSCG of the NSN 4730-01-139-4231 is 4730

Does the NSN 4730-01-139-4231 have a Schedule B code assigned?

Yes, the Schedule B code is 7307929000

Does NSN 4730-01-139-4231 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 4730-01-139-4231 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-139-4231 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 4730-01-139-4231 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Oct 1, 1982