SMC 4-4N : Superlok Straight Stainless Tube Adapter, 1/4" (-4) Tube OD x 1/4-18 (-4N) Male NPT

Our Series SMC Straight Tube x Male NPT Adapters in 316 stainless steel (316SS) are durable fittings designed to connect straight tubing to male NPT (National Pipe Thread) threaded connections in hydraulic and pneumatic systems. Made from 316SS, these adapters provide superior corrosion resistance, making them perfect for harsh environments such as chemical processing, marine, and food industries. The male NPT side features tapered threads that allow for a secure, leak-proof connection when screwed into NPT-compatible components. The tube side connects to straight tubing, typically made from materials like steel, copper, or aluminum, which is commonly used to transport fluids or gases. The tubing is securely inserted into the adapter, with a compression fitting ensuring a tight, leak-free seal. NPT fittings are favored for their ability to handle high-pressure applications, providing a reliable, durable connection for fluid systems.