Value Collection ZBD9993-8 O-ring Dash 235 Nbr 3.13 in Id

Product Description

The VALUE COLLECTION ZBD9993-8 is a Dash 235 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 3.13 inches inside diameter, 3.38 inches outside diameter, and 0.125 inches thick. With a Shore A hardness rating of 70 and a working temperature range of -40 degrees F to 275 degrees F, this O-ring is suited for hydraulic, pneumatic, and fluid-sealing applications where resistance to petroleum-based oils and fuels is required. Plumbers, HVAC technicians, and industrial maintenance professionals install this part as a static or dynamic face seal in pumps, valves, cylinders, and fittings.

This O-ring is appropriate for use in residential and commercial plumbing systems, HVAC equipment, hydraulic assemblies, and pneumatic circuits where a Dash 235 standard-size NBR seal is specified. It is commonly installed in pipe flanges, valve bodies, pump housings, and threaded fittings requiring a reliable low-pressure to moderate-pressure fluid seal. The NBR compound provides good resistance to petroleum-based oils, fuels, and many water-based fluids, making it a practical general-purpose choice across multiple trade applications.

Key Features

• Dash 235 standard sizing: 3.13 inches ID x 3.38 inches OD x 0.125 inches thick
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based oils, fuels, and water-based fluids
• Shore A hardness of 70 for a firm, reliable seal under compression
• Wide temperature range: -40 degrees F to 275 degrees F
• Round cross section for consistent radial and face-seal performance

Compatibility

Designed as an OEM-style replacement or service seal for any application requiring a Dash 235 standard O-ring with NBR material and a round cross section.

Installation Notes

This O-ring should be installed by a qualified tradesperson following applicable plumbing, HVAC, or hydraulic system service procedures. Depressurize and isolate the system completely before removing the existing seal. Inspect the groove and mating surfaces for nicks, burrs, or corrosion before seating the new O-ring. Avoid twisting or over-stretching the ring during installation, and do not use sharp tools that could nick the sealing surface.