4730-00-257-0423

Find complete technical information, availability, and procurement data for: 4730-00-257-0423
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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

4730-00-257-0423

Item Name Code

03771

Assigment Date

03/26/1971 (55 years ago)

0.969 inches nominal 2nd end leg length, 2a all ends thread class, 1.594 inches nominal 1st end leg length, 2a 1st end bulkhead thread class, flared (tube) all ends 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 all ends
Thread Class: 2a 1st end bulkhead
Connection Style: flared (tube) all ends
Leg Length: 0.969 inches nominal 2nd end
Leg Length: 1.594 inches nominal 1st end
Connection Type: threaded external tube all ends
Nominal Thread Size: 0.438 inches 1st end bulkhead
Nominal Thread Size: 0.438 inches all ends
Seat Angle: 37.0 degrees all ends
Flow Angle: 90.0 degrees
Nominal Outside Diameter Tube Accommodated: 0.250 inches all ends
Material: copper alloy 377 overall
Material Document And Classification: sae assn std single material response overall
Thread Series Designator: unf 1st end bulkhead
Thread Series Designator: unf all ends
Furnished Items And Quantity: 2 tube coupling nut w/sleeve and 1 bulkhead nut

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
4WEBTXB	Tube Elbow

FAQs

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

What is the FSCG of the NSN 4730-00-257-0423?

The FSCG of the NSN 4730-00-257-0423 is 4730

Does the NSN 4730-00-257-0423 have a Schedule B code assigned?

Yes, the Schedule B code is 7412200000

Does NSN 4730-00-257-0423 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 4730-00-257-0423 contain precious materials?

Precious metal content is unknown

Does NSN 4730-00-257-0423 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 4730-00-257-0423 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Fri, Mar 26, 1971