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The VALUE COLLECTION SS-MC-FT4-MN8 is a stainless steel compression tube male connector designed to join 1/4-inch OD tubing to a 1/2-inch male NPT threaded port. Manufactured from 316 stainless steel, this fitting provides corrosion resistance suitable for demanding fluid and gas handling systems. The compression end creates a leak-tight seal on the tubing without welding, while the MNPT end threads directly into a female NPT port. With an overall length of 1.82 inches, it is a compact, reliable inline connector used by licensed plumbers, pipefitters, and instrumentation technicians in industrial, commercial, and mechanical system applications.
This connector is suited for use in fluid distribution lines, instrument tubing runs, and process piping where stainless steel is required for corrosion resistance or cleanliness. It is commonly installed in commercial and industrial settings including HVAC hydronic systems, pneumatic controls, chemical processing, and laboratory gas lines. The NPT thread standard ensures compatibility with standard pipe fittings found throughout North American plumbing and instrumentation installations.
Designed as a standard compression-to-male-NPT connector for 1/4-inch OD tubing systems using NPT-threaded fittings. Referenced Swagelok equivalent part number is SS-400-1-8.
Installation should be performed by a licensed plumber or qualified instrumentation technician familiar with compression fittings and NPT thread assemblies. Shut off all line pressure and depressurize the system before installation or removal. NPT threads should be sealed with appropriate thread sealant or PTFE tape per manufacturer and applicable code requirements. Do not overtighten the compression nut, as this can deform tubing and compromise the seal.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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