Steel & O'Brien Mfg., Inc.

Steel & O'Brien Manufacturing was founded in 1990 and we are the largest domestic manufacturer of machined sanitary fittings. Our primary focus is the manufacturing of stainless steel fittings for the food processing, pharmaceutical, dairy and various other industries. We can make your fittings or supply standard industry fittings, in many different materials including Hastelloy, AL6XN, Duplex, titanium, Teflon, Acrylic and many others.

With numerous standard fittings in our vast inventory plus welding and polishing capabilities, many specials are just a phone call away. We will also supply a drawing for you to approve for any custom fittings. Steel & O'Brien has been praised for its very quick turnaround and friendly service.