Youtuber, RCSubGuy uses the watertight, low-friction properties of U-Cup seals for a watertight seal on remote control submarines. PAI’s 70 durometer black-colored Buna N compound 5747 U-Cups resists pressure from water even at significant depths. Learn more
As the name implies, these O-Rings are used to seal Straight Threaded Tube Fittings. As with other O-Rings in static application designs, they make a seal between two mating components. Unlike most O-Rings, they are not completely housed in a rectangular groove or gland. The threaded male tubing fitting does contain a radiused partial groove [...]
As their name suggests, O-Rings — sometimes referred to as preformed packings — are doughnut-shaped gaskets that serve as seals. They need to be slightly deformed — that is, squeezed and stretched — in order to function properly. Each side of an O-Ring is squeezed between the walls of whatever space the seal is going [...]