Value Collection ZMSCS70201 Silicone O-ring Dash 201 50pk

Product Description

The VALUE COLLECTION ZMSCS70201 is a Dash 201 silicone O-ring with a round cross section, rated for a wide service temperature range of -80 degrees F to 450 degrees F. It measures 0.1875 inches inside diameter, 0.4380 inches outside diameter, and 0.1250 inches thick. Shore hardness is rated at 70, placing it in the hard hardness category. This O-ring is installed by HVAC technicians, plumbers, and mechanical contractors wherever a reliable static or dynamic seal is needed in systems exposed to temperature extremes, weathering, or ozone. Each order includes a package of 50 rings.

This O-ring is suited for applications requiring broad temperature tolerance and good dry heat resistance. It performs well in environments with ozone and weather exposure. It carries limited oil resistance, so it is not the preferred choice in heavy petroleum or hydraulic oil service. Typical install scenarios include HVAC equipment seals, plumbing fittings, pump housings, and general mechanical assemblies where silicone elastomer is the specified material. The white color aids visual inspection during assembly and maintenance.

Key Features

• Silicone elastomer construction with round cross section for consistent sealing contact
• Wide temperature range: -80 degrees F to 450 degrees F
• Shore 70 hardness for firm, reliable compression sealing
• Good weather and ozone resistance for outdoor or exposed installations
• Limited oil resistance — specify accordingly for petroleum service environments
• Packaged in quantities of 50 per order, minimum order quantity of 1 package

Compatibility

Designed as a standard Dash 201 O-ring replacement for any application specifying a 3/16 inch ID silicone O-ring with 1/8 inch cross section thickness per standard O-ring sizing conventions.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or qualified mechanical technicians. Depressurize and isolate the system before removing any existing O-ring seals. Inspect the groove and mating surfaces for nicks, burrs, or debris before seating the new ring. Note that this silicone compound has limited oil resistance; confirm material compatibility with the service fluid before installation.