Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The ARB outer compression nut, sized for 5mm systems, is a service-grade fastening nut used with compression fittings to secure tubing connections. It provides the external threaded component needed to create a sealed compression joint on compatible ARB-style lines. Keep it for replacement during maintenance or when assembling compression fittings to ensure a tight, reliable seal.
ARB Compression Nut Outer 5mm
