Value Collection ZMSCS70269 Silicone O-ring Dash 269

Product Description

The VALUE COLLECTION ZMSCS70269 is a Dash 269 silicone O-ring with a round cross section designed for static and dynamic sealing applications across HVAC, plumbing, and industrial systems. It measures 8.75 inches inside diameter, 9 inches outside diameter, and 0.125 inches thick. The silicone compound is rated hard at 70 durometer Shore A and handles a wide service temperature range of -80 degrees F to 450 degrees F. White in color, this O-ring is suited for environments where good dry heat resistance and ozone resistance are required. Licensed tradespeople and maintenance technicians install this part during equipment service or rebuilds.

This O-ring is appropriate for residential and commercial applications where sealing against oils, chemicals, and solvents is needed. Its wide temperature tolerance makes it a practical choice for high-heat equipment such as furnaces, boilers, pumps, and industrial valves. The silicone material provides good weather and ozone resistance, though its oil resistance is limited and should be evaluated against the specific fluid environment before installation. Typical install scenarios include flange seals, pump housings, and valve body assemblies.

Key Features

• 8.75 inches inside diameter and 9 inches outside diameter with 0.125 inches cross-section thickness
• Silicone compound rated at 70 durometer Shore A hardness
• Service temperature range of -80 degrees F to 450 degrees F
• Good dry heat resistance, weather resistance, and ozone resistance
• Compatible with oils, chemicals, and solvents in appropriate concentrations
• Round cross section suits standard O-ring grooves machined to Dash 269 dimensions

Compatibility

Designed as an OEM-style replacement or aftermarket sealing component for equipment requiring a Dash 269 O-ring with silicone material and a 70 durometer hardness rating. Verify groove dimensions and fluid compatibility before installation.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or industrial maintenance personnel. De-energize all electrical circuits and shut off fluid supply lines before disassembling any assembly containing this O-ring. Ensure the mating groove is clean and free of debris, and inspect the seating surface for damage before installing the new O-ring. Note that silicone compounds have limited oil resistance; confirm compatibility with the specific media in the system before use.