Value Collection ZMSCS70216 Silicone O-ring Dash 216

Product Description

The VALUE COLLECTION ZMSCS70216 is a Dash 216 silicone o-ring with a 1.125-inch inside diameter, 1.375-inch outside diameter, and 0.125-inch cross-section thickness. The round cross-section profile seats evenly in standard o-ring grooves. With a hardness rating of 70 Shore A, this ring resists deformation under load. Silicone compound provides reliable sealing across a wide temperature range, from -80 degrees F to 450 degrees F, making it a common choice where standard nitrile or EPDM materials fall short. Licensed plumbers, HVAC technicians, and maintenance professionals install this type of seal in fluid and gas handling assemblies.

This o-ring is suited for residential and light commercial applications where wide temperature tolerance and dry heat resistance are required. Silicone compound offers good weather and ozone resistance, and limited resistance to oils, chemicals, and solvents. Typical use cases include HVAC equipment fittings, plumbing connections, and general mechanical assemblies that see thermal cycling or outdoor exposure. This part is packaged in a quantity of 50 units per pack, making it appropriate for service fleets and shop stock replenishment.

Key Features

• Silicone material rated for -80 degrees F to 450 degrees F continuous service
• 70 Shore A hardness for firm, consistent groove seating
• Round cross-section profile for uniform compression and sealing
• Good resistance to weathering, ozone, and dry heat
• Limited oil resistance — confirm fluid compatibility before installation in oil-wetted systems
• Packed 50 units per package for shop stock and fleet service use

Compatibility

Designed as an OEM-style replacement or service-stock o-ring for standard Dash 216 groove applications requiring a silicone compound seal in HVAC, plumbing, or general mechanical assemblies.

Installation Notes

Install by a qualified technician following applicable codes such as the IPC or IFGC for gas and fluid system work. De-energize or shut off fluid supply to the assembly before removing the existing o-ring. Inspect the groove for burrs or debris that could damage the new seal prior to installation. Because this silicone compound has limited oil resistance, verify compatibility with the system fluid before use in oil-wetted or petroleum-based environments.