1-1/4 NPS SCH 40, (1.660" OD, 0.140" W), 316 Stainless Steel Pipe, Welded

NPS stands for Nominal Pipe Size. It's a dimensionless number used in North America to indicate the size of pipes, valves, and other related components in a piping system. It's not a direct measurement of the pipe's actual dimensions, but rather a convenient way to refer to a specific pipe size.
Please refer to OD, ID and Wall for actual size of pipe.
316 Stainless Steel Round Bar offers better corrosion and pitting resistance as well as higher strength at elevated temperatures than the 304 alloy. Corrosion resistance to seawater, atmospheric conditions, chemicals, acids and foods. Chrome-Nickel, Austenitic (Non-Magnetic).

• Material: Stainless Steel
• Shape: Pipe
• Alloy: 316
• Temper: Annealed
• Nominal Pipe Size: 1-1/4 inch Schedule 40
• Outside Diameter: 1.660 inch
• Inside Diameter: 1.380 inch
• Wall: 0.140 inch
• Finish: Mill (Unpolished)
• Specifications: ASTM A312
• Tolerances: Industry Standards on OD and Wall| Length: Listed length up to plus 1 inch.