Value Collection ZMSCV70164 Viton O-ring Dash 164

Product Description

The VALUE COLLECTION ZMSCV70164 is a Dash 164 Viton (fluoroelastomer) O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, refrigeration, and industrial fluid systems. It measures 6.25 inches inside diameter, 6.438 inches outside diameter, and 0.0937 inches thick. The compound carries a Shore A hardness of 70 and is rated for continuous service from -15 degrees F to 400 degrees F. Its fluoroelastomer construction delivers low compression set and low gas permeability, making it well suited for high-temperature fluid and vacuum sealing tasks. Installation is performed by licensed plumbers, HVAC technicians, refrigeration mechanics, and industrial maintenance professionals.

This O-ring fits sealing grooves sized for the AN/MS Dash 164 standard. Typical applications include pump covers, valve bodies, pipe flanges, compressor housings, and refrigerant or hydraulic circuit service ports that see elevated operating temperatures or petroleum-based fluid exposure. The fluoroelastomer material resists a wide spectrum of chemicals including petroleum products, hydraulic fluids, and many solvents, making it appropriate for both wet and dry sealing environments in residential and commercial mechanical systems.

Key Features

• Fluoroelastomer (Viton-type) compound resists petroleum products, hydraulic fluids, and a wide range of chemicals
• Rated -15 degrees F to 400 degrees F continuous service temperature range
• Shore A 70 hardness provides a firm, reliable seal with low compression set over time
• Low gas permeability makes it suitable for vacuum service and refrigerant circuit sealing
• Round cross section, 0.0937 inches thick, conforms to AN/MS Dash 164 groove dimensions
• Sold in packages of 2 pieces per order

Compatibility

Designed as a standard AN/MS Dash 164 replacement O-ring for any groove machined to accept a 6.25-inch ID round-cross-section seal in fluoroelastomer-compatible service.

Installation Notes

Depressurize and drain the system completely before removing any sealing components. Clean the groove of all debris and residual sealant before seating the new O-ring. Apply a compatible lubricant such as a fluoroelastomer-safe silicone or petroleum-based grease to ease installation and reduce risk of cutting the ring during assembly. Verify groove dimensions conform to the Dash 164 standard before installation to ensure proper squeeze and sealing force.