Value Collection ZMSCS70112 Silicone O-ring Dash 112

Product Description

The VALUE COLLECTION ZMSCS70112 is a Dash 112 silicone O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and industrial systems. It measures 0.500 inches inside diameter, 0.688 inches outside diameter, and 0.094 inches thick with a round cross section. The silicone compound carries a Shore A hardness of 70 and is rated for a wide service temperature range of -80 degrees F to 450 degrees F, making it well suited for high-heat and outdoor exposure situations where standard Buna-N would fail. Each package contains 100 rings.

This O-ring is used wherever a resilient seal is needed against dry heat, weather, and ozone degradation. Typical applications include HVAC equipment access panels, duct flanges, pump housings, valve stems, and general-purpose mechanical assemblies exposed to elevated temperatures or outdoor elements. The silicone material offers good resistance to chemicals and solvents but provides only limited oil resistance, so it is not the preferred choice for petroleum-immersion service. It is sold in a quantity of 100 per package with a minimum order quantity of 1 package.

Key Features

• Wide temperature range: -80 degrees F to 450 degrees F continuous service
• Shore A 70 hardness — firm enough for positive sealing under compression
• Round cross section, Dash 112 per standard O-ring sizing
• Good weather and ozone resistance for outdoor or exposed installations
• Resistant to chemicals and solvents; limited oil resistance
• White silicone color; 100 pieces per package

Compatibility

Designed as a standard Dash 112 O-ring replacement suitable for any gland or groove machined to Dash 112 dimensions in HVAC, plumbing, pool, and light industrial equipment where silicone elastomer is the specified compound.

Installation Notes

Installation is typically performed by HVAC technicians, plumbers, or mechanics during equipment service or assembly. Power down or de-energize the system and relieve all pressure before opening any fitting or housing. Lightly lubricate the O-ring with a compatible silicone-based grease before seating to prevent tearing during assembly. Avoid using petroleum-based lubricants, as these can degrade the silicone compound over time.