Value Collection ZMSCH90330 O-ring Dash 330 Nbr Pack 50

Product Description

The VALUE COLLECTION ZMSCH90330 is a Dash 330 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 2.125 inches inner diameter, 2.5 inches outer diameter, and 0.1875 inches thick, with a round cross-section. Rated at 90 durometer (Extra Hard), this O-ring is built for applications requiring firm compression set resistance and reliable sealing under mechanical load. It is compatible with petroleum-based fluids and carries SAE and MIL-Spec standards compliance. Licensed plumbers, HVAC technicians, and hydraulic system technicians rely on this profile for static and dynamic sealing in oil, fuel, and pneumatic lines.

This O-ring is suited for use in industrial, commercial, and residential trade applications where petroleum product exposure is expected. Common install scenarios include hydraulic cylinder assemblies, pneumatic fittings, fuel system components, plumbing valve bodies, and HVAC refrigerant-side connections where Buna-N is an appropriate elastomer. It handles a temperature range of -40 degrees F to 250 degrees F, making it viable across a broad range of operating environments. Each package contains 50 pieces, supporting service calls, repair kits, and parts stock replenishment.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• 90 durometer Extra Hard rating for firm sealing under compression
• Operating temperature range: -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• Round cross-section with precise Dash 330 dimensional profile
• Resistant to tear and abrasion; suitable for dynamic sealing applications

Compatibility

Compatible with petroleum-based fluids and systems. Designed as an OEM-style replacement or service-stock O-ring for hydraulic, pneumatic, fuel, and plumbing valve applications requiring a Dash 330 Buna-N profile. Note: Buna-N should not be used with ozone-generating environments, direct sunlight exposure, or near motors and electrical equipment that produce ozone.

Installation Notes

O-ring installation is performed by licensed plumbers, HVAC technicians, or hydraulic system mechanics depending on the application. Before servicing, shut off and depressurize the system completely. Ensure the groove and mating surfaces are clean and free of debris before seating the O-ring. Do not overstretch the O-ring during installation; use a light lubricant compatible with Buna-N and the system fluid to ease installation and prevent twisting.