Universal Power Conversion, Inc. (UPC) can offer you a verity of Straight O-Ring Face Seal Hydraulic fittings. With Male x Male or Male x Female combinations with thread options of O-Ring Face Seal (OFS), National Pipe Thread (NPT), O-Ring Boss (ORB), and 37° Flare (JIC). These fittings are made from steel.
If you don't find what you are looking for please contact UPC.