RS PRO Stainless Steel Pipe Fitting Hexagon Nipple Joint, Male NPT 1/2in x Male NPT 1/2in | RS
316 SS, FITOK 6 Series Pipe Fitting, Close Nipple, 1/8 Male NPT | Elneo France
316 SS, FITOK 6 Series Pipe Fitting, Hex Long Nipple, 1/2 Male NPT, 2"(50.8mm) Long | Elneo France
Stainless Steel Pipe Fittings Seamless Plain End PE Pipe Nipple - China Steel Pipe Nipple, Threaded Nipple | Made-in-China.com
Hex Reducing Nipple - Hexagonal Reducing Nipple | Over 40 Years Tube/Pipe Fittings for Medical & Semiconductor Industry Manufacturer | CHIBIN Machine Co., Ltd.
5 inch Threaded Brass Reducer Hex Nipple Pipe Fitting, For Industrial