Value Collection ZMSCH70223 O-ring Dash 223 Nbr 50-pack

Product Description

The VALUE COLLECTION ZMSCH70223 is a Dash 223 Nitrile Butadiene Rubber (NBR/Buna-N) O-ring with a 1.625-inch inside diameter, 1.875-inch outside diameter, and a 0.125-inch round cross section. Rated for a hardness of 70 Shore A, this O-ring is designed for static and dynamic sealing applications where exposure to petroleum-based fluids is common. It handles temperatures from -40 degrees F to 250 degrees F, making it suitable for a wide range of mechanical, hydraulic, and fluid-system sealing tasks. Sold in a package of 50, it suits shops and field technicians who need to keep standard sizes on hand.

This O-ring is used in plumbing, HVAC, hydraulic, and pneumatic assemblies where a Dash 223 NBR seal is specified. Typical applications include pump housings, valve bodies, fittings, and fluid-line connectors that carry petroleum-based oils, fuels, or lubricants. The round cross section seats cleanly in standard Dash 223 grooves. It is appropriate for both residential and light commercial mechanical systems and is commonly stocked by plumbing, HVAC, and general mechanical trades for routine maintenance and repair work.

Key Features

• Buna-N (NBR) elastomer offers excellent resistance to petroleum products, oils, and fuels
• 70 Shore A hardness provides hard-rated compression set and tear and abrasion resistance
• Operating temperature range of -40 degrees F to 250 degrees F suits most mechanical system environments
• Round cross section fits standard Dash 223 O-ring grooves without modification
• Meets SAE and MIL-Spec standards for material and dimensional consistency
• Package of 50 units supports shop stock and multi-unit service calls

Compatibility

Designed as a standard Dash 223 O-ring replacement compatible with petroleum-product fluid systems. Do not use with ozone-generating environments, direct sunlight storage conditions, or near motors and electrical equipment that produce ozone, as NBR elastomer is susceptible to ozone degradation.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or mechanical service professionals. Always relieve system pressure and shut off fluid supply before removing or replacing O-rings in pressurized assemblies. Lubricate the O-ring with a compatible petroleum-based lubricant before seating to prevent rolling or tearing during installation. Inspect the groove for burrs or debris before installation to ensure a proper seal.