140S1-5

View detailed technical data, stock status, and sourcing information for: 140S1-5
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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

4730-00-203-0315

Item Name Code

18281

Assigment Date

01/01/1963 (63 years ago)

A fluid line fitting having a pipe, tube or hose connection or a through hole to accommodate a bolt, fluid passage on one end. The other end must have an external or internal thread for connecting a mating part to form a self-sealing coupling assembly. The fitting has either a self-sealing feature for the purpose of automatically shutting off the flow of fluid when disconnected from its mating half, or, if it has no self-sealing feature, is specifically designed to mate with a fitting with a self-sealing feature. For self-sealing fittings with a quick disconnect end, see coupling half, quick disconnect. For fluid line fittings without a self-sealing feature, see coupling (as modified).

flared all ends connection style, self-sealing features provided, threaded external tube first fluid end connection connection type, 3a all ends thread class, 1.363 inches minimum and 1.433 inches maximum overall length

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 all ends
Overall Length: 1.363 inches minimum and 1.433 inches maximum
Connection Style: flared all ends
Connection Type: threaded external tube first fluid end connection
Features Provided: self-sealing
Nominal Thread Size: 0.500 inches all ends
Seat Angle: 37.0 degrees
Material: aluminum alloy body
Surface Treatment: anodize body
Style Designator: male coupling half
Thread Series Designator: unf all ends

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4730-00-433-2563	No Name Available	01/01/1961

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
140S1-5	Self-Sealing Coupling Half

FAQs

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

What is the FSCG of the NSN 4730-00-203-0315?

The FSCG of the NSN 4730-00-203-0315 is 4730

Does the NSN 4730-00-203-0315 have a Schedule B code assigned?

Yes, the Schedule B code is 7609000000

Does NSN 4730-00-203-0315 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 4730-00-203-0315 contain precious materials?

Precious metal content is unknown

Does NSN 4730-00-203-0315 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 4730-00-203-0315 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963