Back Home / Special / BRASS PIPE NIPPLE 3/8″ X 3-1/2″ BRASS PIPE NIPPLE 3/8″ X 3-1/2″ SKU: X3331X6 Category: Special Pipe brass fitting The most common form of brass fittings. They are used with brass, bronze, and iron pipe. Applications include grease, fuels, LP and natural gas, refrigeration, instrumentation and hydraulic systems. There are no nuts or sleeves used. The fitting has threads referred to as National Pipe Threads (NPT). Size 3/8″ pipe x 3-1/2″ long Case Quantity: Log In For Pricing