Swagelok SS-4-A Stainless Steel Pipe Fitting Adapter

Swagelok SS-4-A is a 316 stainless steel pipe fitting adapter that provides a 1/4 in. female NPT on one end and a 1/4 in. male NPT on the other, delivering a compact NPT-to-NPT transition for tight piping runs in instrumentation, sampling lines, and small-diameter process connections. The 316 stainless steel body offers corrosion resistance and compatibility with common industrial fluids and environments, making it suitable for laboratory gas lines, chemical processing, and other applications where a reliable, leak-tight seal is essential. Identified by the SS prefix in Swagelok's catalog, SS-4-A is designed for interchangeability with other 1/4 in. NPT fittings and is used to join two threaded pipe sections in a robust, corrosion-resistant manner.