Value Collection ZMSCH90148 O-ring Dash 148 Nbr 90D 50pk

Product Description

The VALUE COLLECTION ZMSCH90148 is a Dash 148 Nitrile Butadiene Rubber (Buna-N) O-ring designed for sealing applications in hydraulic, pneumatic, and fluid-handling systems. It measures 2.75 inches inside diameter, 2.938 inches outside diameter, and 0.094 inches thick with a round cross section. Rated at 90 durometer (extra hard), this O-ring delivers firm compression set resistance and strong tear and abrasion resistance. The temperature range spans -40 to 250 degrees F, making it suitable for a wide range of operating environments. Sold in a package of 50 units, it is a standard go-to seal for plumbing, HVAC, and industrial maintenance professionals.

Buna-N O-rings in the Dash 148 size are commonly used in residential and commercial applications wherever petroleum-based fluids, oils, fuels, or hydraulic media are present. Typical install scenarios include pump seals, valve bodies, fittings, manifolds, and fluid line connections. This O-ring is compatible with petroleum products and performs well in both static and dynamic sealing applications. It is not recommended for use with ozone-heavy environments, direct sunlight exposure, or near motors and electrical equipment that generate ozone.

Key Features

• Buna-N (Nitrile Butadiene Rubber) material with excellent resistance to petroleum products
• 90 durometer extra-hard rating for firm compression and low creep
• Operating temperature range: -40 to 250 degrees F
• Round cross section, Dash 148 standard sizing
• Meets SAE and MIL-Spec standards
• Pack of 50 units, minimum order quantity of 1 package

Compatibility

Compatible with petroleum products including oils, fuels, and hydraulic fluids. Meets SAE and MIL-Spec standards. Not FDA approved. Should not be used in contact with ozone, strong oxidizing agents, or aromatic hydrocarbons beyond the material rating.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or industrial maintenance mechanics depending on the application. Before replacing an O-ring, shut off fluid flow and depressurize the system fully. Inspect the seating groove for damage or debris before seating the new O-ring. Avoid twisting or rolling the O-ring during installation to prevent premature seal failure.