The thread size of 8AN is 3/4-16UNF. 8AN Y Block Flare Fitting 1Pc. The AN side of the flare is sealed by a 37 degree angle. Y Thread adapter has A/N type male inlet and outlet for bi-directional flow.
Vibrant Performance -8AN to 20mm x 1.5 Metric Straight Adapter
AN-10 (10AN) To 2 x AN-6 (6AN) Billet Aluminium Y Block Adapter Fitting in Black
NEW 16 AN to 2 x 12AN Parallel Y Distribution Block Custom W/1/4 NPT Black
16AN to 2 x -12AN Parallel Y Distribution Block Custom W/1/4 NPT US ALLOYWORKS
16AN to 2 x 12AN Parallel Y Distribution Block Custom W/1/4 NPT Black US
6AN 3-Way Tee T-Piece Fitting Adapter AN6 Male to 2 X 6AN Male Flare Union BLACK