Value Collection ZMSCH70036 O-ring Dash 036 Nbr

Product Description

The VALUE COLLECTION ZMSCH70036 is a Dash 036 Buna-N (Nitrile Butadiene Rubber) O-ring designed for sealing applications across HVAC, plumbing, hydraulic, and general mechanical systems. It measures 2.375 inches inside diameter and 2.5 inches outside diameter with a 0.0625-inch (1/16 inch) round cross section and a Shore A hardness of 70. Buna-N is the most widely used O-ring elastomer in the trade, valued for its excellent resistance to petroleum-based fluids, strong compression set, and good tear and abrasion resistance. Licensed HVAC technicians, plumbers, and hydraulic system mechanics commonly stock this size for routine maintenance and repair work.

This O-ring is suited for use in residential and commercial systems where exposure to petroleum-based fluids, oils, fuels, and hydraulic fluids is expected. The temperature rating of -40 degrees F to 250 degrees F makes it appropriate for a broad range of operating environments. It is commonly installed in compressor fittings, valve bodies, pump housings, refrigerant service ports, and fluid system connections. The round cross section provides consistent sealing performance across standard SAE and MIL-Spec groove dimensions for the Dash 036 designation.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• Dash 036 designation with 2.375-inch ID and 2.5-inch OD round cross section
• Shore A hardness of 70 rated Hard for reliable compression sealing
• Operating range from -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• Resistant to tear and abrasion; suitable for dynamic and static sealing applications

Compatibility

Compatible with petroleum products, oils, fuels, and hydraulic fluids. Designed as an OEM-style replacement O-ring for any Dash 036 groove conforming to SAE and MIL-Spec standards. Not recommended for use with ozone, strong oxidants, or systems exposed to direct sunlight or electrical equipment generating ozone.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or hydraulic system mechanics. Always depressurize and drain the system and shut off all fluid supply before replacing an O-ring. Lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent tearing during assembly. Do not store O-rings in direct sunlight or near motors and other electrical equipment that may generate ozone, as this degrades Buna-N material over time.