Value Collection ZBD9977 O-ring 3/8 in Id Nbr Dash 012

Product Description

The VALUE COLLECTION ZBD9977 is a Dash 012 O-ring used to create static or dynamic fluid seals in plumbing, HVAC, and mechanical systems. It features a round cross section and is molded from Nitrile Butadiene Rubber (NBR), a material well suited for use with petroleum-based fluids, water, and refrigerants. The inside diameter measures 0.375 inches, the outside diameter measures 0.500 inches, and the wall thickness is 0.0625 inches. A Shore A hardness rating of 70 provides firm resistance to compression set without excessive deformation under load. This O-ring is installed by plumbers, HVAC technicians, and general maintenance trades wherever a reliable face or radial seal is required.

This O-ring is used in residential and light commercial applications including valve bodies, fittings, pump housings, manifolds, and refrigeration service ports. The NBR compound performs across a working temperature range of -40 degrees F to 275 degrees F, making it appropriate for hot-water systems, chilled-water circuits, and refrigerant-side service work. It is sold individually with a minimum order quantity of 50 pieces, making it suitable for stocking in a service van or parts room.

Key Features

• Dash 012 standard sizing: 0.375 inch ID, 0.500 inch OD, 0.0625 inch thickness
• Nitrile Butadiene Rubber (NBR) compound — compatible with petroleum fluids, water, and common refrigerants
• Round cross section for consistent sealing contact in standard O-ring grooves
• Shore A hardness of 70 for firm, stable compression under load
• Operating temperature range of -40 degrees F to 275 degrees F
• Sold individually; minimum order quantity of 50 units for replenishment stocking

Compatibility

Designed as a standard Dash 012 replacement O-ring for use in any application calling for a 3/8 inch ID by 1/2 inch OD by 1/16 inch thick NBR O-ring with a round cross section.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified mechanical trades. Always depressurize and drain the affected system before removing the old O-ring, and ensure the seating groove is clean and free of debris or old sealant before installing the new ring. Lightly lubricating the O-ring with a compatible fluid or O-ring grease helps prevent rolling or tearing during assembly. Do not use petroleum-based lubricants that are incompatible with NBR compound.