Swagelok B-814-1 Brass Back Ferrule 1/2 Inch Size

Swagelok B-814-1 is a brass back ferrule sized for 1/2 in. Swagelok tube fittings. Made of brass, this back ferrule is the rear component in Swagelok's nut-ferrule assembly that clamps the tube as the nut is tightened, forming a leak-tight seal with the opposite front ferrule. Designed for use with the matching front ferrule and nut in 1/2 in. Swagelok fittings, it helps secure a 1/2 in. tube into the fitting body and maintain consistent compression through the life of the connection. Brass back ferrules like the B-814-1 are selected for compatibility with standard brass fittings and common process fluids, offering good machinability and corrosion resistance for routine instrumentation and analytical setups. The part number B-814-1 identifies a single back ferrule intended for replacement in 1/2 in. Swagelok installations, enabling maintenance without replacing the full nut-ferrule package.