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The PARKER 12MSC16N-316 is a stainless steel compression tube connector designed to join tubing to male NPT threaded pipe connections in high-demand fluid and gas systems. It uses a compression-style end on one side and a male NPT thread on the other, creating a reliable mechanical seal without welding or brazing. Rated to 5800 psi maximum working pressure, it handles temperatures from -425 degrees F to 1200 degrees F, making it suitable for cryogenic through high-heat applications. At 2.28 inches overall length and 0.39 pounds, it is a compact fitting for tight installation spaces. Licensed plumbers, pipefitters, and industrial contractors install this fitting in process piping, instrumentation lines, and utility systems.
This connector is used in residential, commercial, and industrial applications where a compression tube must terminate or transition to a male NPT threaded port. Its wide temperature range makes it appropriate for steam, hydraulic, pneumatic, and cryogenic service lines. The 1-inch, 11.5 threads-per-inch NPT thread standard ensures compatibility with standard pipe fittings across plumbing and process piping systems. Installers encounter this fitting in instrumentation tubing runs, compressed air systems, chemical process lines, and high-pressure fluid transfer applications.
Designed as an OEM-style replacement or new-installation compression tube connector for systems using 1-inch 11-1/2 NPT male threaded ports with compression tube connections in stainless steel piping and instrumentation applications.
Installation should be performed by a licensed plumber or pipefitter familiar with compression fitting assembly and NPT thread makeup. Depressurize and isolate the line completely before disassembly or installation. Apply thread sealant appropriate for the service fluid to the male NPT threads per the applicable plumbing or process piping code. Do not overtighten the compression nut beyond the fitting manufacturer's recommended turns past finger-tight, and do not substitute thread sealants that are incompatible with the service medium or temperature range.
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