Value Collection ZMSCH90367 O-ring Dash 367 Nbr 90 Duro

Product Description

The VALUE COLLECTION ZMSCH90367 is a Dash 367 Nitrile Butadiene Rubber (NBR/Buna-N) O-ring with a 7.5-inch inside diameter, 7.875-inch outside diameter, and a 3/16-inch (0.1875-inch) cross-section thickness. Rated at 90 durometer, this extra-hard compound delivers excellent compression set resistance along with strong tear and abrasion resistance. The operating temperature range spans -40 to 250 degrees F, making it suitable for a wide variety of fluid-sealing applications in HVAC, plumbing, hydraulic, and industrial systems. Licensed tradespeople and maintenance technicians install this O-ring as a static or dynamic face seal or radial seal wherever a Dash 367 replacement is required.

This O-ring is suited for use with petroleum-based fluids including oils, fuels, and hydraulic fluids, making it a common choice in HVAC refrigeration circuits, hydraulic manifolds, pump housings, and industrial fluid-handling assemblies. The Buna-N elastomer is the most widely used O-ring compound across trade and industrial applications. Each package contains 10 O-rings. Note that this compound should not be stored in direct sunlight or near motors or other electrical equipment that may generate ozone, as ozone exposure degrades NBR material over time.

Key Features

• Dash 367 standard sizing: 7.5 inches ID x 7.875 inches OD x 3/16 inches thick
• 90 durometer (extra-hard) Buna-N compound for high-compression applications
• Operating range of -40 to 250 degrees F suits broad fluid-sealing environments
• Excellent resistance to petroleum products, hydraulic fluids, and oils
• Round cross-section for standard O-ring groove fitment per SAE and MIL-Spec standards
• Sold in a package quantity of 10 per order

Compatibility

Compatible with petroleum products and other fluids where Buna-N (NBR) elastomer is specified. Meets SAE and MIL-Spec standards for O-ring materials and dimensions. Designed as a direct Dash 367 replacement in any groove machined to AS568 Dash 367 specifications.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, hydraulic system technicians, or qualified maintenance personnel. Always depressurize and drain the system before removing the existing O-ring. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant prior to seating to prevent tearing during assembly. Do not use petroleum-incompatible lubricants or solvents on Buna-N compound, and avoid rolling or twisting the O-ring during installation.