Value Collection ZBD9993-17 Nbr O-ring Dash 244

Product Description

The VALUE COLLECTION ZBD9993-17 is a Dash 244 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 4.25 inches inside diameter, 4.5 inches outside diameter, and 0.125 inches thick. NBR compound delivers solid resistance to petroleum-based fluids, hydraulic oils, and fuels, making this O-ring a standard choice across plumbing, HVAC, and fluid-handling applications. The material is rated to a hardness of 70 Shore A, classified as hard, and handles a working temperature range of -40 degrees F to 275 degrees F. Licensed tradespeople and maintenance technicians installing or servicing fluid system components will find this a direct-fit static or dynamic seal for standard Dash 244 groove dimensions.

This O-ring suits residential and light commercial applications where a reliable Dash 244 NBR seal is required. Typical install scenarios include pipe flanges, valve bodies, pump housings, and hydraulic fittings that call for a 4.25-inch ID seal. Its temperature and chemical compatibility make it appropriate for use in water, oil, and fuel systems operating within the rated thermal range. This part is sold individually, with a minimum order quantity of 25 units per order.

Key Features

• NBR material resists petroleum-based fluids, hydraulic oils, and common fuels
• Working temperature range of -40 degrees F to 275 degrees F
• 70 Shore A hardness for firm seating in standard grooves
• Round cross section conforms to standard Dash 244 groove geometry
• 4.25 inches ID x 4.5 inches OD x 0.125 inches thick for precise dimensional fit

Compatibility

Designed as an OEM-style replacement or service seal for applications requiring a standard Dash 244 O-ring groove with a 4.25-inch inside diameter and NBR compound compatibility.

Installation Notes

O-ring installation is performed by plumbers, HVAC technicians, and hydraulic system technicians depending on the application. Always depressurize and drain the system before removing or replacing any seals. Inspect the groove for nicks, burrs, or debris before seating the new O-ring, and apply a compatible lubricant to ease installation and prevent nicking during assembly. Do not roll or twist the O-ring into the groove, as this can cause spiral failure under pressure.