Value Collection ZMSCH90023 O-ring Dash 023 Nitrile 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90023 is a Dash 023 nitrile butadiene rubber (Buna-N) O-ring rated at 90 durometer hardness. It measures 1.63 inches inside diameter with a 0.0625 inch cross-section thickness and seats in standard Dash 023 groove profiles. The round cross-section and extra-hard durometer rating make it suitable for static and dynamic sealing applications involving petroleum-based fluids. Licensed plumbers, HVAC technicians, and hydraulic system technicians install this O-ring where fuel oils, mineral oils, and hydraulic fluids are present. It is the most widely used elastomer type in fluid sealing applications across trade industries.

This O-ring is used in residential and commercial plumbing, HVAC refrigerant circuit components, hydraulic fittings, fuel systems, and pump assemblies where petroleum product exposure is expected. The Buna-N compound provides excellent resistance to petroleum products as well as strong compression set resistance, making it a reliable choice for threaded fittings, valve stems, and hydraulic couplings. It performs across a temperature range of -40 degrees F to 250 degrees F. Sold in packages of 100 units with a minimum order quantity of 1.

Key Features

• Buna-N (nitrile butadiene rubber) compound with excellent resistance to petroleum products and hydraulic fluids
• 90 durometer extra-hard hardness rating for high-pressure sealing applications
• Operating temperature range of -40 degrees F to 250 degrees F
• Round cross-section profile, Dash 023 sizing for standard groove compatibility
• Strong tear and abrasion resistance extends service life in dynamic sealing environments
• Meets SAE and MIL-Spec standards

Compatibility

Designed for use with petroleum products including mineral oils, fuel oils, and hydraulic fluids in standard Dash 023 O-ring groove profiles. Not recommended for use with ozone, sunlight exposure during storage, or near electrical equipment generating ozone. Not FDA approved.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system mechanics. Always depressurize and isolate the system before replacing O-rings to prevent fluid release or injury. Lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent tearing during assembly. Store unused O-rings away from direct sunlight, ozone sources, and electrical motors to preserve elastomer integrity.