Value Collection ZMSCH90113 O-ring Dash 113 Nbr 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90113 is a Dash 113 Nitrile Butadiene Rubber (Buna-N) O-ring with a 0.563-inch inside diameter, 0.75-inch outside diameter, and a 0.094-inch cross-section thickness. Rated at 90 durometer, this extra-hard O-ring is engineered for static and dynamic sealing applications where resistance to petroleum-based fluids is essential. It operates across a temperature range of -40 degrees F to 250 degrees F. HVAC technicians, plumbers, and hydraulic system technicians typically install this part as a sealing element in valves, fittings, pumps, and fluid couplings. It carries SAE and MIL-Spec standards compliance.

This O-ring is suited for residential and commercial applications involving petroleum products, hydraulic fluids, oils, and fuels. Common install scenarios include valve body seals, pump shaft seals, refrigeration service port seals, and compression fittings in fluid-handling systems. The Buna-N compound provides excellent compression set resistance along with strong tear and abrasion resistance, making it reliable in high-cycle service environments. Packaged in a quantity of 100, it is practical for shop stock and fleet service operations.

Key Features

• Buna-N (Nitrile Butadiene Rubber) compound offers excellent resistance to petroleum products and hydraulic fluids
• 90 durometer extra-hard rating provides high compression set resistance and dimensional stability under load
• Temperature range of -40 degrees F to 250 degrees F suits a wide range of HVAC, plumbing, and hydraulic applications
• Meets SAE and MIL-Spec standards for sealing component performance
• Round cross-section profile conforms to standard Dash 113 AS568 sizing
• Packaged in a quantity of 100 for efficient bench stock replenishment

Compatibility

Compatible with systems and assemblies that use petroleum-based fluids, hydraulic oils, and fuels. Not recommended for exposure to ozone, direct sunlight during storage, or proximity to motors and electrical equipment that generate ozone. Not FDA approved for food or potable water contact applications.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or hydraulic system mechanics. Always depressurize the system and relieve fluid pressure completely before removing or installing O-rings. Lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent damage during assembly. Inspect the mating groove for nicks, burrs, or contamination that could compromise the seal.