Value Collection ZMSCV70256 Viton O-ring Dash 256

Product Description

The VALUE COLLECTION ZMSCV70256 is a Dash 256 Viton fluoroelastomer O-ring designed for static and dynamic sealing applications in systems handling petroleum products, high-temperature fluids, and aggressive chemicals. It measures 5.75 inches inside diameter, 6 inches outside diameter, and 0.125 inches thick with a round cross section. Rated for service from -15 degrees F to 400 degrees F, this O-ring delivers low compression set and low gas permeability. Each package contains 2 O-rings. The fluoroelastomer compound provides a wide spectrum of chemical compatibility, making it a reliable choice for demanding industrial and mechanical sealing jobs.

This O-ring is suited for use in HVAC, plumbing, hydraulic, and industrial fluid systems where petroleum-based media, high temperatures, or vacuum service conditions are present. The Dash 256 designation identifies the standard AS568 size, making it straightforward to cross-reference for replacement or MRO applications. It is appropriate for both residential and light commercial equipment as well as general industrial machinery where a large-diameter fluoroelastomer seal is required.

Key Features

• Fluoroelastomer (Viton-type) material offers broad chemical resistance including petroleum products
• Operating temperature range of -15 degrees F to 400 degrees F supports high-heat applications
• Low compression set maintains sealing force over extended service life
• Low gas permeability makes it suitable for vacuum service
• Round cross section, Dash 256 AS568 standard size for easy cross-referencing
• Package includes 2 O-rings per order

Compatibility

Designed as a standard Dash 256 fluoroelastomer O-ring compatible with petroleum products and suitable for systems requiring resistance to high temperatures and a wide range of chemicals.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or industrial maintenance personnel. Always depressurize and drain the system before replacing seals. Inspect the groove dimensions and surface finish to ensure compatibility with the O-ring cross section before installation. Avoid rolling or twisting the O-ring during installation to prevent cross-sectional distortion that can cause premature seal failure.