"AN3 tee fitting" "3-way brake line connector" "stainless steel AN3" "hydraulic tee" "universal brake fitting" "SS304 AN3". ✔Threads: 3/8"-24 UNF (standard AN3 thread). ???? SS304 AN3 3AN 3-WAY TEE Fitting – Universal Brake/Hydraulic Hose Connector (Aircraft Grade).