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The VALUE COLLECTION ZMSCV70163 is a Dash 163 Viton O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and industrial service work. Made from fluoroelastomer (Viton) with a 70 durometer hardness rating, this O-ring measures 6 inches inside diameter, 6.188 inches outside diameter, and 0.094 inches thick with a round cross section. It handles a working temperature range of -15 degrees F to 400 degrees F, making it well suited for high-temperature service environments. Sold in a 2-pack. Plumbers, HVAC technicians, and maintenance professionals install this part in systems where petroleum-fluid compatibility and reliable sealing are required.
This O-ring is appropriate for residential and commercial applications involving petroleum-based fluids, refrigerant handling, and vacuum service. Its low gas permeability and low compression set make it a practical choice for pump seals, valve bodies, flanged connections, and other sealing points that see elevated temperatures or chemical exposure. The wide chemical compatibility of fluoroelastomer extends its use across a broad range of fluid types common in mechanical and process systems.
Designed as a standard Dash 163 O-ring replacement for sealing applications requiring a 6 inch inside diameter fluoroelastomer seal compatible with petroleum products and high-temperature environments.
Install by a qualified plumber, HVAC technician, or industrial mechanic following applicable codes. Shut off all fluid supply and depressurize the system fully before removing the old O-ring. Inspect the sealing groove for nicks or debris before seating the new ring. Do not use petroleum-based greases as an assembly lubricant with fluoroelastomer O-rings - use a compatible silicone or fluoroelastomer-safe lubricant.
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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