Bulkhead Nut #8 Black

The Bulkhead Nut #8 Black by FRAGOLA is a precision hydraulic and pneumatic fitting component engineered for high-pressure fluid transfer systems. This aluminum bulkhead nut serves as the compression fastener in bulkhead assemblies, securing fittings tightly to manifolds, tanks, and equipment housings. Designed for professionals in aerospace, automotive, industrial hydraulics, and marine applications, this fitting nut ensures leak-free connections in demanding environments where reliability is non-negotiable.

Manufactured from aluminum and finished in black anodize, the Bulkhead Nut #8 Black combines lightweight construction with superior corrosion resistance. The #8 AN (Army-Navy) size designation indicates compatibility with 8 AN thread ports, a standard specification in fluid system design. The black anodized coating not only enhances durability and protects against oxidation, but also provides professional appearance across industrial and performance applications. The compact design—measuring just 2.3 x 0.85 x 4.05 inches and weighing only 0.02 lbs—makes it ideal for space-constrained installations without sacrificing structural integrity or pressure rating.

Technicians, fabricators, and system builders rely on this fitting nut when assembling or maintaining hydraulic brake systems, fuel delivery systems, coolant circuits, and pressure-line assemblies. Installation is straightforward: the nut threads onto the bulkhead fitting body and tightens against the mounting surface, creating a secure mechanical seal. This single-unit offering (sold as each) suits both replacement and new-build projects. When sourced from FRAGOLA—a trusted manufacturer of AN-standard fittings—you gain confidence in thread accuracy, material consistency, and performance under vibration and extreme temperature cycles.