Value Collection ZBD9995-7 O-ring Dash 337 Nbr

Product Description

The VALUE COLLECTION ZBD9995-7 is a Dash 337 O-ring made from Nitrile Butadiene Rubber (NBR), designed for static and dynamic sealing applications in fluid and pneumatic systems. It measures 3 inches inside diameter, 3.375 inches outside diameter, and 0.1875 inches (3/16 inches) thick, with a round cross section. Hardness is rated at 70 Shore A, placing it in the hard range. The NBR compound delivers reliable resistance to petroleum-based oils, fuels, and hydraulic fluids, making it a practical choice for plumbing, hydraulic, and HVAC service work where a robust, chemical-compatible seal is required.

This O-ring suits residential and light commercial service applications involving pipe fittings, valve stems, pump housings, and hydraulic cylinder assemblies. Its Dash 337 designation follows standard AS568 sizing, so it drops in wherever a Dash 337 ring is called out on a parts list or service manual. Plumbers, HVAC technicians, and hydraulic equipment service professionals will find it a direct dimensional match for OEM service positions that specify a 3-inch ID NBR seal. Each unit is sold individually, with a minimum order quantity of 10 pieces.

Key Features

• Dash 337 standard sizing: 3 inches ID, 3.375 inches OD, 0.1875 inches thick
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based oils, fuels, and hydraulic fluids
• 70 Shore A hardness for firm, reliable sealing under pressure
• Round cross section ensures consistent contact area across the sealing groove
• Rated from -40 degrees F to 275 degrees F for broad service temperature coverage

Compatibility

Designed as a standard Dash 337 replacement O-ring for any application specifying a 3-inch ID, 3.375-inch OD, 0.1875-inch thick NBR seal per AS568 sizing conventions.

Installation Notes

Always depressurize and isolate the system before removing the old O-ring or installing the new one. Inspect the sealing groove for nicks, corrosion, and debris before seating the ring. Apply a light coat of compatible lubricant to the O-ring to aid installation and reduce the risk of twisting or tearing. Confirm the replacement ring seats fully and evenly in the groove before reassembling and returning the system to service.