MIL-DTL-24643(M24643) Shipboard Cable is light-weight, low-smoke cable that does not spontaneously combust nor supports combustion, and does not emit toxic material such as dioxin. These properties make MIL-DTL-24643 the safest shipboard cable, which is why the US Marine would use many variations of this cable for a variety of nautical applications. This cable is also often used in tunnels and transit systems. The variations include waterproofing, high flexibility, and adding aluminum or steel armor against pests or high pressure damages, providing further protection and safety.