Aircraft Butt Splices

Butt Splices

If there’s one thing that can’t come loose mid-flight, it’s your wiring. Enter the humble butt splice—an essential piece of any aircraft technician’s toolkit. These small but mighty connectors keep your wires joined securely, whether you’re building a harness or fixing a frayed lead. And of course, SkyGeek has a full lineup of aviation-grade butt splices to get the job done right.

What Is a Butt Splice?

A butt splice is a connector that joins two wires end-to-end. Slide the wires in, crimp the center, and boom—you’ve got a solid electrical connection with minimal resistance. They’re ideal for permanent repairs and are often used in everything from cockpit lighting systems to fuel pump circuits. If you’ve got two wires that need to act like one, this is how you do it.

Aviation-Grade Reliability

Our selection includes nylon-insulated, heat-shrink, and uninsulated butt splices—each one rated for the rigors of flight. Need something vibration-resistant? Moisture-sealed? Easy to crimp? We’ve got options for every application and every environment, all meeting or exceeding MIL-SPEC or commercial aircraft standards.

Splice It. Seal It. Send It.

With SkyGeek, you can shop for splices by wire gauge, insulation type, or brand. And thanks to our fast shipping and massive inventory, you won’t be stuck waiting on a backorder while your project sits grounded.