A Y McDonald co. AY 5186-013 780R748WDPP 775X36 SGL RISER PIT HBP FPBVxFPDCK MNPT (Male National Pipe Thread) xMNPT (Male National Pipe Thread) AY 5186-013780R748WDPP 775X36 SGL RISER PIT HBP FPBVxFPDCK MNPT (Male National Pipe Thread) xMNPT (Male National Pipe Thread)