Value Collection ZMSCH2X5 O-ring 5mm Id 9mm Od Nbr

Product Description

The VALUE COLLECTION ZMSCH2X5 is a Buna-N (nitrile butadiene rubber) O-ring with a round cross section, designed for static and dynamic sealing applications across plumbing, hydraulic, pneumatic, and industrial systems. It measures 5 mm inside diameter, 9 mm outside diameter, and 2 mm thick. Rated for service from -40 degrees F to 250 degrees F, this O-ring resists petroleum-based fluids, oils, fuels, and hydraulic fluids, making it a reliable choice for fuel system components, valve stems, pump shafts, and pipe fittings where hydrocarbon compatibility is required. Plumbers, HVAC technicians, and industrial maintenance professionals install this type of seal routinely in both residential and commercial service work.

This O-ring is suited for use in petroleum-product environments including fuel lines, oil systems, hydraulic circuits, and water supply fittings where Buna-N elastomer is the specified material. Its 70-durometer hardness rating places it in the hard range, providing good resistance to extrusion under pressure. The round cross section makes it compatible with standard O-ring grooves machined to AS568 or metric dimensions. Meets SAE and MIL-Spec standards. Sold in a package quantity of 100, making it practical for shop stock, service van replenishment, or scheduled maintenance kits.

Key Features

• Buna-N (nitrile butadiene rubber) construction — the most widely used O-ring elastomer for petroleum-fluid service
• Operating temperature range of -40 degrees F to 250 degrees F
• 70-durometer hardness for strong compression set resistance and extrusion resistance
• Excellent tear and abrasion resistance for dynamic sealing applications
• Meets SAE and MIL-Spec standards
• Sold in a pack of 100 for shop stock or bulk service use

Compatibility

Compatible with petroleum products including oils, fuels, and hydraulic fluids. Not recommended for use with ozone-generating environments, direct sunlight exposure, or equipment near motors and electrical devices that may produce ozone. Not FDA approved — not intended for food-contact applications.

Installation Notes

O-rings of this type are installed by plumbers, HVAC technicians, hydraulic system technicians, and industrial maintenance mechanics. Depressurize and isolate the system before removing or replacing any sealing components. Lubricate the O-ring with a compatible fluid or assembly lubricant before seating to prevent tearing during installation. Inspect the groove for burrs, scoring, or contamination before fitting the new seal.