Value Collection ZMSCV70248 Viton O-ring Dash 248 5-pack

Product Description

The VALUE COLLECTION ZMSCV70248 is a Dash 248 Viton (fluoroelastomer) O-ring designed for static and dynamic sealing applications that demand chemical resistance and wide temperature tolerance. Measuring 4.75 inches inside diameter, 5 inches outside diameter, and 0.125 inches thick with a round cross section, this O-ring carries a Shore A hardness rating of 70 and is rated for service from -15 degrees F to 400 degrees F. It is sold in a pack of five and is suitable for installation by licensed plumbers, HVAC technicians, industrial maintenance mechanics, and experienced trade professionals working with fluid or gas sealing systems.

This O-ring is suited for applications involving petroleum-based fluids and oils, hydraulic systems, fuel handling lines, and high-temperature sealing environments. The fluoroelastomer compound provides low compression set and low gas permeability, making it a reliable choice for vacuum service and pressurized sealing joints in both residential and light commercial mechanical systems. It is not FDA approved and should not be specified for food-contact or potable-water applications.

Key Features

• Fluoroelastomer (Viton) compound rated from -15 degrees F to 400 degrees F
• Shore A hardness of 70 for reliable compression and sealing force under load
• Round cross section with 0.125-inch thickness for standard groove fitment
• Low compression set helps maintain seal integrity over extended service life
• Low gas permeability suitable for vacuum service applications
• Compatible with petroleum products and a wide spectrum of chemical environments

Compatibility

Designed as a standard Dash 248 O-ring replacement for sealing grooves requiring a 4.75-inch inside diameter, 5-inch outside diameter, and 0.125-inch cross section thickness. Compatible with systems and fluids involving petroleum products. Not rated for FDA-regulated food or potable water contact.

Installation Notes

Installation is typically performed by a licensed plumber, HVAC technician, or qualified industrial mechanic. Always depressurize and drain the system completely before removing the existing O-ring. Inspect the groove for scoring, debris, or corrosion before seating the new ring. Apply a compatible lubricant to the O-ring to ease installation and reduce the risk of pinching or rolling during assembly.