About This Size: The fitting is an AN6 flare to 1/4" NPT adapter, and the thread size of the 6AN is 9/16-18 UNF. It is designed as a 90-degree elbow. Material: The fitting is made of aluminum alloy 6061-T6 with an anodized black surface. Sealing: The AN side of the flare is sealed at a 37-degree angle, and the NPT thread side is sealed with 60-degree tapered threads. Application: The fitting is widely used in fuel systems, cooling systems, power steering systems, and more. Notice: To ensure no leakage at the NPT end, sealant or PTFE tape is strongly recommended. The fitting allows easy installation and removal with a wrench. Overview Size : 6AN to 1/4 NPT Material : Aluminum Brand : EVIL ENERGY Color : 90 Degree Connector Type : Flare Thread Size : 0.25 inch Exterior Finish : Aluminum Thread Type : NPT Item Weight : 0.02 Kilograms Number of Pieces : 1