Value Collection ZMSCS70144 Silicone O-ring Dash 144

Product Description

The VALUE COLLECTION ZMSCS70144 is a silicone O-ring with a round cross section, sized to the Dash 144 standard. It measures 2.5 inches inside diameter, 2.688 inches outside diameter, and 0.0937 inches thick. The silicone compound provides a wide service temperature range from -80 degrees F to 450 degrees F, making it well suited for applications that demand reliable sealing under both extreme cold and dry heat conditions. It carries a hardness rating of 70 Shore A, classified as hard. Licensed plumbers, HVAC technicians, and industrial maintenance trades use these O-rings when replacing worn or damaged seals in fluid and gas system connections.

This O-ring is appropriate for use in residential and light commercial plumbing, HVAC equipment, and general industrial assemblies where exposure to a wide temperature range is expected. Silicone material offers good resistance to weathering and ozone, making it a practical choice for outdoor or UV-exposed installations. It has limited oil resistance, so it is best deployed in systems handling water, air, mild chemicals, or solvents rather than petroleum-based fluids. Each package contains 10 O-rings, which supports both single-repair and routine stock replenishment needs.

Key Features

• Dash 144 standard sizing: 2.5 inches ID, 2.688 inches OD, 0.0937 inches thick
• Silicone compound rated from -80 degrees F to 450 degrees F continuous service
• 70 Shore A hardness for firm sealing in high-temperature dry environments
• Good weather and ozone resistance for outdoor and exposed installations
• Compatible with oils, mild chemicals, and solvents; limited petroleum oil resistance
• Round cross section for standard groove fitment across common seal housings

Compatibility

Designed as a general-purpose replacement O-ring for any application requiring a Dash 144 round cross-section silicone seal in plumbing, HVAC, or industrial equipment.

Installation Notes

Shut down and depressurize the system before removing the existing O-ring. Clean the groove and mating surfaces of debris or old sealant before seating the new ring. Do not stretch the O-ring beyond what is needed for installation, as overstretching can reduce effective cross-section and compromise the seal. Consult applicable plumbing or mechanical codes such as IPC or ASME standards for pressure system service requirements in your jurisdiction.