Value Collection ZMSCH70269 O-ring Dash 269 Nbr 5 Pack

Product Description

The VALUE COLLECTION ZMSCH70269 is a Dash 269 O-ring made from Nitrile Butadiene Rubber (NBR), also known as Buna-N, one of the most widely used elastomers in sealing applications. It features an 8.75-inch inside diameter, a 9-inch outside diameter, and a 0.125-inch round cross-section thickness. Rated at 70 Shore A hardness, this O-ring delivers reliable compression set resistance along with strong tear and abrasion resistance. It is installed by plumbers, HVAC technicians, and industrial maintenance professionals wherever a dependable petroleum-resistant static or dynamic seal is required.

This O-ring is suited for use in hydraulic systems, pneumatic equipment, fluid transfer lines, and general plumbing assemblies where exposure to petroleum-based oils, fuels, and lubricants is expected. Its operating temperature range of -40 degrees F to 250 degrees F makes it appropriate for a wide range of residential and light commercial service environments. It is sold in a package of 5 units, making it practical for technicians who service multiple systems in a single call. NBR compounds should not be stored in direct sunlight or near motors and other electrical equipment that may generate ozone.

Key Features

• Buna-N (NBR) construction offers excellent resistance to petroleum products including oils, fuels, and lubricants
• 70 Shore A hardness rating provides a firm, reliable seal with strong compression set resistance
• Round cross-section profile conforms to standard Dash 269 groove dimensions
• Operating range of -40 degrees F to 250 degrees F suits a broad range of service conditions
• Tear and abrasion resistance extends service life in dynamic and static applications
• Meets SAE and MIL-Spec standards for dimensional and material compliance

Compatibility

Designed as a standard Dash 269 O-ring replacement compatible with petroleum-based fluid systems including hydraulic, pneumatic, and general plumbing assemblies requiring an 8.75-inch ID sealing element.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance personnel. Relieve all system pressure and drain fluid before removing the old O-ring and installing the replacement. Lubricate the O-ring with a compatible petroleum-based or silicone grease to ease seating and reduce risk of tearing during installation. Avoid twisting or rolling the O-ring into the groove, as this can compromise the seal integrity under pressure.