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The VALUE COLLECTION ZMSCH90232 is a Dash 232 O-ring manufactured from Buna-N (nitrile butadiene rubber), one of the most widely used elastomers in fluid sealing applications. It measures 2.75 inches inside diameter, 3 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 90 durometer (extra hard), this O-ring delivers excellent compression set resistance along with strong tear and abrasion resistance. It is sold in a package quantity of 50 and is suitable for use in HVAC, plumbing, hydraulic, and pneumatic systems where petroleum-based fluids are present.
This O-ring is commonly used in residential and commercial service applications where a reliable, petroleum-resistant seal is required. Typical install scenarios include pump housings, valve bodies, hydraulic fittings, and refrigerant or fluid line connections. Plumbers, HVAC technicians, and hydraulic equipment technicians routinely stock Dash 232 Buna-N O-rings as standard service inventory. The 50-piece pack supports shop stock or repeat service calls requiring multiple replacements.
Compatible with petroleum-based products and fluids. Designed as a standard Dash 232 O-ring replacement for use in systems where Buna-N elastomer is the specified material. Not FDA approved; not recommended for food-grade or ozone-heavy environments or for storage near motors and electrical equipment that may generate ozone.
Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic service technicians depending on the application. Always relieve system pressure and isolate the fluid circuit before removing existing seals. Inspect the mating groove for wear, burrs, or contamination before seating the new O-ring. Avoid exposing Buna-N O-rings to direct sunlight or ozone-generating equipment during storage.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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