4730-01-238-6443

Find complete technical information, availability, and procurement data for: 4730-01-238-6443
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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

4730-01-238-6443

Item Name Code

03771

Assigment Date

08/19/1986 (40 years ago)

A fitting having three connections with the branch connection fixed at 90 degrees (1.5705 radians) to the run. The connections have machine threads (straight threads other than pipe or hose series) designed to accommodate a tube, or are unthreaded and designed to accommodate a tube. It may have side inlet(s). It is used as a junction at the intersection of a tube or tube fitting.

2a 2nd end thread class, 2.062 inches nominal 2nd end leg length, flared (tube) 2nd end connection style, 2b 1st end thread class, swivel nut, gasket seal (tube) 1st 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
Connection Style: swivel nut, gasket seal (tube) 1st end
Connection Style: flared (tube) 2nd end
Leg Length: 2.062 inches nominal 2nd end
Leg Length: 2.312 inches nominal 1st end
Connection Type: threaded external tube 2nd end
Connection Type: threaded internal tube 1st end
Thread Quantity Per Inch: 12 all ends
Nominal Thread Size: 1.625 inches all ends
Seat Angle: 37.0 degrees 2nd end
Flow Angle: 90.0 degrees
Nominal Outside Diameter Tube Accommodated: 1.250 inches 1st end
Nominal Outside Diameter Tube Accommodated: 1.250 inches 2nd end
Material: steel overall
Thread Series Designator: un 1st end
Thread Series Designator: un 2nd end
Furnished Items And Quantity: 1 nut with sleeve
Specification/Standard Data: 96906-ms51521 government standard

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
20C6BX-S	Tube Elbow
MS51521A20	Tube Elbow

FAQs

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

What is the FSCG of the NSN 4730-01-238-6443?

The FSCG of the NSN 4730-01-238-6443 is 4730

Does the NSN 4730-01-238-6443 have a Schedule B code assigned?

Yes, the Schedule B code is 7307929000

Does NSN 4730-01-238-6443 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 4730-01-238-6443 contain precious materials?

Item does not contain precious metal.

Does NSN 4730-01-238-6443 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 4730-01-238-6443 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Tue, Aug 19, 1986