AN to O-Ring -16 x 1 1/16-12 (-12)

The AN to O-Ring -16 x 1 1/16-12 (-12) fitting from TRIPLE X RACE COMPONENTS is a specialized hydraulic and fuel line adapter engineered for high-performance automotive systems. This adapter bridges ANJ (Army-Navy) male threads to O-ring boss (ORB) female ports, making it essential for custom fuel injection setups, nitrous systems, and competition cooling circuits where tight sealing is non-negotiable. Mechanics and fabricators rely on these adapters when converting between SAE ORB and military-spec ANJ standards—a common requirement in street rod builds, circle track race cars, and turbo-charged engine conversions.

This fitting uses a -16 ANJ male thread (which equals 1 inch nominal diameter) connected to a 1 1/16-12 ORB female port, featuring a precision-molded elastomer O-ring seal that eliminates the need for PTFE tape or pipe dope. The O-ring design provides superior vibration resistance and thermal stability compared to straight thread fittings, critical when suspension movement and engine vibration can fatigue traditional seals. TRIPLE X RACE COMPONENTS' manufacturing tolerances ensure a leak-free dry disconnect in fuel systems operating up to fuel injection pressures, reducing downtime and eliminating messy spills during component swaps at the track or shop.

Race-focused builders, restoration specialists, and DIY fabricators benefit most from this adapter when retrofitting modern fuel rails, fuel pressure regulators, or brake proportioning valves onto platforms originally designed with SAE ports. Installation is straightforward—hand-tighten the male ANJ thread into the ORB boss until the O-ring seats, then wrench-turn an additional quarter turn to ensure a secure connection without over-torquing. Verify port sizes and thread pitch before purchase to confirm compatibility with your specific manifold or component; the compact 3.35-inch profile fits tight engine bays common in street rod and compact race car applications.