S-1443N186 1.049" ID x 1 5/16" OD x 4" Long ASME B1.20.1, ASTM A733 Standard-Wall Stainless Steel Threaded Pipe Nipples and Pipe with Sealant

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316/316L stainless steel construction for extended service life in harsh chemical and marine environments
• Factory-applied PTFE thread sealant ensures immediate, leak-proof connections without additional sealing compounds or preparation time
• Welded construction provides enhanced structural integrity and pressure containment for demanding industrial applications
• Versatile media compatibility with air, natural gas, oil, steam, and water systems for multi-service piping flexibility
• Precision NPT threading on both ends guarantees secure, standardized connections with Class 150 fittings and flanges
• Heavy-duty Schedule 40 wall thickness (0.133") delivers reliable pressure handling and mechanical durability
• RoHS 3 compliance meets stringent environmental regulations for global industrial procurement requirements

Professional Applications & Engineering Value

This 316/316L stainless steel threaded pipe nipple solves critical sealing challenges in industrial fluid handling systems. The factory-applied PTFE thread sealant eliminates common installation errors and prevents leakage in high-pressure steam, oil, and gas applications where temperature fluctuations can compromise traditional sealants. The welded construction combined with Schedule 40 wall thickness provides exceptional burst resistance, making it ideal for process piping, compressor lines, and industrial plumbing systems. The NPT threading ensures compatibility with standard Class 150 stainless steel fittings and flanges, while the corrosion-resistant 316/316L material maintains performance in corrosive environments including chemical processing and marine installations.

Specification Summary & Compliance

This 1" NPT threaded pipe nipple features precision Class 2A thread tolerances per ASME B1.20.1 standard and is manufactured to ASTM A733 specifications for welded and seamless carbon and alloy steel pipe nipples. The product maintains RoHS 3 (2015/863/EU) compliance for restricted substance control and is engineered for use with Class 150 stainless steel fittings and flanges. Dimensional specifications include 4" length, 1.049" ID, 1-5/16" OD, and 0.133" wall thickness consistent with Schedule 40 pipe standards.