Value Collection ZBD9993-12 O-ring Dash 239 Nbr

Product Description

The VALUE COLLECTION ZBD9993-12 is a Dash 239 O-ring made from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 3.63 inches inside diameter, 3.88 inches outside diameter, and 0.125 inches thick. With a durometer hardness of 70 Shore A and a working temperature range of -40 degrees F to 275 degrees F, this O-ring is built for reliable static and dynamic sealing in fluid and pneumatic systems. Licensed trades and maintenance professionals use NBR O-rings in HVAC equipment, plumbing assemblies, hydraulic fittings, and pneumatic components where petroleum-based fluids or water are present.

This O-ring is suited for residential and commercial applications where a Dash 239 standard-size seal is required. Typical install scenarios include pump housings, valve bodies, pipe unions, and fluid-handling manifolds. The NBR compound performs reliably in contact with oils, fuels, and water-based fluids across a broad service temperature range, making it a versatile replacement seal for general trade use. Minimum order quantity is 25 pieces; each package contains 1 unit.

Key Features

• Nitrile Butadiene Rubber (NBR) compound resists oils, fuels, and water-based fluids
• Dash 239 standard sizing for direct drop-in replacement
• Round cross section for consistent seating and even compression
• 70 Shore A hardness rated Hard for durable sealing under pressure
• Wide service temperature range: -40 degrees F to 275 degrees F
• Sold individually; minimum order quantity of 25 units

Compatibility

Designed as an OEM-style replacement seal for any application requiring a Dash 239 standard O-ring in NBR material, including pump housings, valve assemblies, and fluid-system fittings.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance professionals. Always depressurize and drain the system before removing the old seal. Inspect the O-ring groove for nicks, burrs, or corrosion before seating the new ring. Apply a compatible, system-appropriate lubricant to ease installation and prevent twisting during assembly.