Value Collection ZMSCV70258 Viton O-ring Dash 258

Product Description

The VALUE COLLECTION ZMSCV70258 is a Dash 258 Viton (fluoroelastomer) O-ring designed for static and dynamic sealing applications across plumbing, HVAC, industrial, and fluid-handling systems. It measures 6 inches inside diameter, 6.25 inches outside diameter, and 0.125 inches thick with a round cross section. The fluoroelastomer compound delivers strong resistance to petroleum-based fluids and high temperatures, with a rated operating range of -15 degrees F to 400 degrees F. Each package contains 2 O-rings. Installation is performed by licensed plumbers, pipefitters, HVAC technicians, and industrial maintenance professionals.

This O-ring is suited for use in sealing flanges, valve stems, pump housings, and hydraulic or pneumatic connections where exposure to petroleum products, fuels, or elevated temperatures is expected. Its low compression set and low gas permeability make it a reliable choice for vacuum service and high-pressure sealing tasks in both residential and commercial system applications. The black fluoroelastomer construction provides broad chemical compatibility across a wide spectrum of media commonly encountered in trade service work.

Key Features

• Fluoroelastomer (Viton-type) material with good resistance to petroleum products and fuels
• Operating temperature range of -15 degrees F to 400 degrees F
• Low compression set for reliable long-term sealing performance
• Low gas permeability suitable for vacuum service applications
• Hard (70 durometer) compound for durability under pressure
• Round cross section, Dash 258 standard sizing — 2 O-rings per package

Compatibility

Designed as an OEM-style replacement or service seal for applications requiring a Dash 258 O-ring in fluoroelastomer. Compatible with petroleum products and a wide spectrum of chemical media per manufacturer specifications. Not FDA approved.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or HVAC technician following applicable IPC or IFGC guidelines. Depressurize and isolate the system completely before removing the old O-ring or installing the new one. Inspect the seating groove for damage, burrs, or contamination before seating the O-ring. Do not twist or pinch the O-ring during installation, as distortion compromises the seal.