Straight Adapter Fitting ; Size: -4AN x 1/8in NPT

The Straight Adapter Fitting -4AN x 1/8in NPT (part number 10293) is a precision hydraulic and pneumatic adapter engineered to bridge AN-style quick-disconnect systems with National Pipe Thread connections. Machined from aluminum with black anodized finish, this fitting serves critical applications in hydraulic brake systems, fuel delivery, and industrial fluid transfer where secure, leak-free connections between dissimilar thread standards are non-negotiable.

The -4AN port accepts standard AN hose fittings, while the 1/8-inch NPT male thread integrates with conventional NPT ports found on manifolds, gauges, and block adapters. Black anodized aluminum construction provides corrosion resistance while maintaining light weight—critical in high-performance hydraulic systems where component weight compounds acceleration forces. The straight configuration eliminates elbows and reduces installation space, making it ideal for compact engine bays and equipment where routing flexibility matters.

This adapter is specified for motorsports fuel systems, off-road hydraulic brake upgrades, industrial pneumatic control circuits, and marine applications where multiple connection standards must interface reliably. Technicians standardizing across mixed legacy and modern systems rely on this fitting to eliminate adapter stacking and potential leak points. The -4AN size handles moderate flow demands in secondary circuits, making it a trusted solution for brake balance configurations, auxiliary fuel delivery, and sensor feed lines where thread compatibility would otherwise require custom fabrication.