Value Collection ZMSCH90327 O-ring Dash 327 Nbr Pack 50

Product Description

The VALUE COLLECTION ZMSCH90327 is a Dash 327 Nitrile Butadiene Rubber (NBR) O-ring with a 1.75-inch inside diameter, 2.125-inch outside diameter, and a 0.1875-inch cross-section thickness. Rated at 90 durometer, this extra-hard O-ring is designed for static and dynamic sealing applications across HVAC, plumbing, hydraulic, and fluid-handling systems. The Buna-N elastomer compound delivers excellent resistance to petroleum-based fluids, strong compression set recovery, and solid tear and abrasion resistance. Licensed plumbers, HVAC technicians, and industrial maintenance techs commonly install this type of seal in pumps, valves, fittings, and manifolds where reliable fluid containment is required.

This O-ring is suited for use in residential and commercial systems that involve petroleum products, oils, fuels, and hydraulic fluids. The Dash 327 designation corresponds to a standardized AS568 size, making it a direct fit in grooves machined to that dash number specification. It performs across a wide temperature range of -40 to 250 degrees F, making it appropriate for both refrigeration-side components and moderate-temperature fluid circuits. Each package contains 50 O-rings, supporting service calls, maintenance kits, and shop stock applications. Store away from direct sunlight and ozone-generating equipment such as motors or electrical devices.

Key Features

• Buna-N (NBR) elastomer with excellent petroleum product resistance
• 90 durometer extra-hard rating for high-pressure sealing environments
• Operating temperature range: -40 to 250 degrees F
• Dash 327 AS568 standard sizing for consistent groove fitment
• Round cross-section profile for uniform compression sealing
• Meets SAE and MIL-Spec standards

Compatibility

Compatible with petroleum products, oils, hydraulic fluids, and fuels. Designed as an OEM-style replacement or service seal for any application calling for a Dash 327 NBR O-ring in grooves machined to AS568 dimensional standards.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified maintenance professional. Depressurize and isolate the system completely before removing any existing seals or fittings. Lightly lubricate the O-ring with a compatible fluid or grease before seating to prevent tearing during assembly. Do not store unused O-rings in direct sunlight or near motors, compressors, or other equipment that generates ozone, as ozone accelerates elastomer degradation.