Description
The SpeedFX 560631BK bulkhead nut is designed for -6AN fluid system installations that require a secure pass-through connection through firewalls, panels, or bulkheads. Manufactured from lightweight 6061 aluminum and finished with a black anodized coating, it combines corrosion resistance with a clean performance appearance. || This fitting is commonly used in fuel, oil, coolant, and custom plumbing systems where AN hose routing must pass through a mounting surface while maintaining a professional installation. The -6AN sizing supports compatibility with standard AN fittings and hose assemblies used in racing and street-performance applications. || SpeedFX engineers this bulkhead nut to provide leak-resistant installation when paired with compatible AN bulkhead fittings. The anodized finish helps protect against oxidation while maintaining appearance in engine bays and underbody plumbing systems.








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