Value Collection ZBD9993-7 O-ring Dash 234 Nbr

Product Description

The VALUE COLLECTION ZBD9993-7 is a Dash 234 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 3 inches inner diameter, 3.25 inches outer 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 use in hydraulic, pneumatic, plumbing, and HVAC fluid-handling assemblies. Licensed trades and maintenance technicians use this part as a static or dynamic face seal wherever NBR compound is specified.

This O-ring is a standard Dash 234 size, making it a common replacement or service seal in residential and commercial plumbing systems, HVAC refrigerant and fluid circuits, pool and spa equipment, and general industrial fluid-handling applications. Its NBR compound provides reliable resistance to petroleum-based oils, fuels, and many water-based fluids, making it a go-to seal for a wide range of service calls. Sold individually; minimum order quantity is 25 units.

Key Features

• Dash 234 standard size: 3 inch ID, 3.25 inch OD, 0.125 inch thickness
• Nitrile Butadiene Rubber (NBR) compound with resistance to petroleum-based oils and water-based fluids
• Shore A hardness of 70 for reliable sealing under compression
• Working temperature range: -40 degrees F to 275 degrees F
• Round cross section for consistent seating in standard O-ring grooves

Compatibility

Designed as an OEM-style replacement or service seal for any application specifying a Dash 234 NBR O-ring with a 3 inch ID and 0.125 inch cross section thickness.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or pipefitter following applicable codes such as the IPC or IFGC depending on the system type. Always depressurize and isolate the system before removing the old seal. Inspect the O-ring groove for burrs or corrosion before seating the new ring, and apply a compatible lubricant to ease installation and prevent pinching. Do not overstretch the O-ring during installation.