Value Collection ZMSCH90009 O-ring Dash 009 Nbr 90 Duro 100-pack

Product Description

The VALUE COLLECTION ZMSCH90009 is a Dash 009 Nitrile Butadiene Rubber (NBR/Buna-N) O-ring sized at 0.219 inches inside diameter, 0.343 inches outside diameter, and 0.0625 inches (1/16 inch) thick. Rated at 90 durometer (extra hard), this O-ring delivers excellent resistance to petroleum-based fluids, making it the most widely used elastomer across HVAC, plumbing, refrigeration, and fluid-handling applications. The round cross-section profile seats cleanly in standard grooves and maintains reliable compression set across a working temperature range of -40 degrees F to 250 degrees F. Licensed HVAC technicians, plumbers, and mechanical contractors stock these for routine service and repair work.

This O-ring is suited for use in residential and light commercial HVAC systems, plumbing assemblies, refrigeration lines, hydraulic connections, and general mechanical fluid-sealing applications where petroleum-product compatibility is required. The black Buna-N compound resists tear and abrasion under typical system pressures. Sold in a package quantity of 100, this SKU is practical for shop stock, service vans, or production-volume maintenance programs. Meets SAE and MIL-Spec standards.

Key Features

• Buna-N (NBR) elastomer with excellent resistance to petroleum products and hydraulic fluids
• 90 durometer extra-hard rating for applications requiring minimal compression deflection
• Operating temperature range of -40 degrees F to 250 degrees F
• Round cross-section seats in standard Dash 009 O-ring grooves
• Meets SAE and MIL-Spec standards
• Sold in a convenient 100-piece package for shop or van stock

Compatibility

Designed as a standard Dash 009 O-ring replacement compatible with petroleum-based fluid systems; verify groove dimensions against 0.219 inches ID, 0.343 inches OD, and 0.0625 inches cross-section thickness before installation.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or qualified mechanical technicians. Shut off all fluid supply and relieve system pressure completely before removing the existing O-ring. Lightly lubricate the O-ring with a compatible petroleum-based or system-approved lubricant before seating to prevent pinching or tearing. Do not store unused O-rings in direct sunlight or near motors or other electrical equipment that may generate ozone, as this degrades the elastomer.