Value Collection ZMSCH90026 O-ring Buna-n 90D Dash 026 100-pack

Product Description

The VALUE COLLECTION ZMSCH90026 is a Dash 026 O-ring made from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in sealing applications. It measures 1.25 inches inside diameter, 1.375 inches outside diameter, and 0.0625 inches thick with a round cross section. Rated at 90 Shore A durometer (extra hard), this O-ring delivers excellent compression set resistance along with strong tear and abrasion resistance. The temperature range spans -40 to 250 degrees F, making it suitable for a broad range of fluid system service conditions. Sold in a package of 100. Licensed plumbers, HVAC technicians, and hydraulic system technicians are the typical end users.

This O-ring is designed for use in petroleum-based fluid systems including hydraulic circuits, fuel lines, pneumatic fittings, and general plumbing connections. The Buna-N compound provides excellent resistance to petroleum products, oils, and fuels, making it a standard choice in residential, commercial, and light industrial maintenance applications where hydrocarbon fluid compatibility is required. It is not recommended for use in ozone-rich environments or with chlorinated solvents; avoid storing near motors or electrical equipment that may generate ozone, and keep away from direct sunlight during storage.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound with excellent petroleum product resistance
• 90 Shore A durometer extra-hard rating for high-compression sealing applications
• Temperature range: -40 to 250 degrees F
• Round cross section, Dash 026 standard sizing
• Meets SAE and MIL-Spec standards
• Package quantity of 100 units per order

Compatibility

Compatible with petroleum products, hydraulic oils, and fuels. Conforms to SAE and MIL-Spec dimensional standards for Dash 026 O-rings, allowing use as a replacement seal in hydraulic fittings, pneumatic components, plumbing valves, and other fluid system hardware requiring a 1.25-inch ID round-section O-ring.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Always depressurize and drain the system before removing or installing O-ring seals to prevent injury and contamination. Lightly lubricate the O-ring with a compatible fluid or grease before seating to prevent pinching or tearing during assembly. Do not stretch the O-ring beyond its natural diameter or twist it during installation, as either condition can cause premature seal failure.