1-5/8-12 x 1-1/4 Male O-Ring Boss x Female National Pipe Straight Mechanical 45° Swivel AdapterThe 1 5 8 12 x 1 1 4 Male O Ring Boss x Female National Pipe Straight Mechanical 45 Swivel Adapter is a hydraulic fitting designed to connect two different thread types at a 45 degree angle, optimizing fluid flow and reducing stress on piping systems. Provides a leak proof, high pressure seal using an O ring. Straight threaded female connection for secure mechanical sealing. Specification Value TYPE Swivel Elbow DESIGN 45 swivel design optimizes fluid