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The VALUE COLLECTION ZMSCS70FDA327 is a Dash 327 silicone O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, fluid handling, and industrial systems. It measures 1.725 inches inside diameter, 2.125 inches outside diameter, and 0.1875 inches thick. The silicone compound carries an FDA-compliant material designation, making it suitable for food-contact and sanitary process environments. Hardness is rated at 70 Shore A, classified as hard. This O-ring is sold in a package of 10 and is installed by plumbers, HVAC technicians, and industrial maintenance professionals working with fittings, valves, manifolds, and fluid connectors.
This O-ring is engineered for applications that demand a wide operating temperature range, from -80 degrees F to 450 degrees F. It offers good dry heat resistance along with weather and ozone resistance. The silicone compound provides limited oil resistance and is compatible with oils, chemicals, and solvents in moderate exposure scenarios. Typical installations include sanitary piping systems, HVAC refrigerant-side fittings, chemical processing valves, and food-grade equipment requiring FDA-compliant sealing components. The Dash 327 designation follows standard AS568 sizing, allowing straightforward cross-referencing across manufacturers and suppliers.
Designed as an OEM-style replacement or new-installation seal for any application requiring an AS568 Dash 327 O-ring in silicone with FDA-compliant material. Compatible with oils, chemicals, and solvents at moderate exposure levels.
Install by a licensed plumber, HVAC technician, or qualified industrial maintenance technician. De-energize, depressurize, and drain the system before removing any existing seal. Inspect the groove for burrs, corrosion, or debris before seating the new O-ring. Avoid overstretching the O-ring during installation, as silicone compounds are more susceptible to tear than nitrile alternatives.
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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