Value Collection ZMSCS70276 Silicone O-ring Dash 276

Product Description

The VALUE COLLECTION ZMSCS70276 is a round cross-section silicone O-ring designed for static and dynamic sealing applications where wide temperature range and dry heat resistance are required. With an 11 inch inside diameter, 11.25 inch outside diameter, and 0.125 inch thickness, this Dash 276 O-ring is sized for larger-bore fittings and housings. The 70-durometer silicone compound handles continuous service from -80 degrees F to 450 degrees F, making it a reliable choice in HVAC, plumbing, and industrial equipment where extreme temperature swings or ozone exposure are concerns. Installation is performed by qualified trades or maintenance technicians during equipment assembly or seal replacement.

This O-ring is suited for residential and commercial applications requiring a resilient seal in high-temperature or outdoor-exposed environments. The silicone material provides good weather and ozone resistance, making it appropriate for HVAC equipment housings, duct system flanges, pump covers, and similar large-diameter sealed joints. Its limited oil resistance should be factored into fluid-system applications before spec-in. Sold individually, it is a direct-replacement seal for equipment requiring a Dash 276 cross-section profile.

Key Features

• Wide service temperature range: -80 degrees F to 450 degrees F
• 70-durometer hardness rating for a firm, reliable seal under compression
• Round cross-section profile conforms to standard Dash 276 sizing
• Good weather and ozone resistance for outdoor or exposed installations
• White silicone compound — note limited oil resistance; verify fluid compatibility before use

Compatibility

Designed as a standard Dash 276 replacement O-ring for equipment requiring an 11 inch ID, 11.25 inch OD, 0.125 inch thick round cross-section silicone seal.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Always depressurize and de-energize the system before removing or replacing any O-ring seal. Clean the mating groove and seating surfaces thoroughly before installing the new ring to prevent debris-caused leaks. Confirm chemical and temperature compatibility with the specific media being sealed prior to installation.