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The HAM-LET 3500169 is a compression tube nut designed for use with 1-inch OD tubing and a 1-inch FNPT thread connection. Manufactured from 316 stainless steel, this fitting nut provides a secure, leak-resistant mechanical connection in high-pressure fluid and gas systems. It is rated to 4,400 psi maximum working pressure and operates across a temperature range of -20 degrees F to 37 degrees F. Compliant with ASTM A182, ASTM A213, ASTM A269, ASTM A276, ASTM A479, DIN EN10122-5, and DIN EN10272 standards, the 3500169 is suited for demanding process, instrumentation, and industrial piping applications where corrosion resistance and dimensional accuracy are required.
This compression tube nut is used in process piping, instrumentation tubing, and fluid control systems where a reliable compression-style tube-to-pipe connection is needed. Typical installations include industrial process lines, chemical handling systems, and high-pressure gas distribution where 316 stainless steel fittings are specified for corrosion resistance. The female NPT thread end connects to standard pipe fittings and valves. It is installed by licensed pipefitters, instrumentation technicians, and mechanical contractors working on systems requiring certified materials compliance.
Designed as a compression tube nut for 1-inch OD tubing with FNPT thread connections. Cross-references with Swagelok part number SS-1612-1 as noted in supplier specifications.
Installation should be performed by a qualified pipefitter or instrumentation technician. Depressurize and isolate the system fully before disassembly or fitting replacement. Follow applicable codes including ASME B31.3 for process piping when making compression tube connections. Do not over-torque the nut, as compression fittings rely on controlled mechanical deformation of the ferrule for a proper seal.
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