Value Collection ZMSCV70204 Viton O-ring Dash 204 25-pack

Product Description

The VALUE COLLECTION ZMSCV70204 is a Dash 204 Viton (fluoroelastomer) O-ring designed for sealing applications that demand chemical resistance and wide temperature tolerance. With an inside diameter of 0.375 inches, an outside diameter of 0.625 inches, and a cross-section thickness of 0.125 inches, this round-profile ring maintains a low compression set across a service range of -15 degrees F to 400 degrees F. The fluoroelastomer compound delivers good resistance to petroleum products, low gas permeability, and broad chemical compatibility, making it a reliable choice for demanding fluid and vacuum service environments. Sold in a package of 25 pieces.

This O-ring is suited for use in HVAC, refrigeration, plumbing, and hydraulic applications where exposure to petroleum-based fluids, oils, or elevated temperatures is expected. It is appropriate for both residential and light commercial service work. Technicians and tradespeople typically use Dash 204 rings when servicing valve stems, fittings, compressor service ports, and fluid line connections. The hard durometer rating supports use in higher-pressure environments where softer elastomers would extrude or deform prematurely.

Key Features

• Fluoroelastomer (Viton) construction with good resistance to petroleum products and oils
• Service temperature range: -15 degrees F to 400 degrees F
• Round cross-section with low compression set for reliable long-term sealing
• Low gas permeability makes it suitable for vacuum service applications
• Hard durometer rating (70) supports use in higher-pressure sealing environments
• Package of 25 rings per order; minimum order quantity of 1 package

Compatibility

Compatible with petroleum products and a wide spectrum of chemical media. Suitable as a Dash 204 standard O-ring replacement in any application requiring 0.375-inch ID and 0.625-inch OD fluoroelastomer seals.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or hydraulic system mechanics. Always depressurize and de-energize the system before replacing O-rings. Lubricate the ring with a compatible fluid or O-ring lubricant prior to seating to prevent tearing or rolling during assembly. Do not over-stretch the ring during installation, as this can reduce effective sealing area and shorten service life.