FMSI > Brake System > Hardware > Brass Unions > Hi-Flow/Heavy Wall Brake Line Union > Item # 123800 FMSIFMSI Brake SystemBrake System HardwareHardware Brass Unions Brass Unions Hi-Flow/Heavy Wall Brake Line UnionHi-Flow/Heavy Wall Brake Line Union Item # 123800 Item # 123800, 1/2" x 3/4" - 18 Invert Flare Brass Union 1238001/2" x 3/4" - 18 Invert Flare Brass Union Request Information Email This Page Download PDF Download PDF Printable Page /Asset/123800.jpg /Asset/123800.jpg Close Window - For 1/2" tube - 3/4" - 18 thread - For invert flare tube nuts Unit of Measure Imperial Metric Both Specifications Type N/A Brass Union Tube Size N/A 1/2 in Thread Diameter N/A 3/4 in Threads per Inch N/A 18 T.P.I Edelmann # N/A 123800 Weatherhead # N/A 302X8 AGS N/A - Packaging N/A SP(2) HP(1) FMSI Part Number N/A 3021 Package Type N/A Bag Units Per Package N/A 1