Value Collection ZMSCH90233 O-ring Dash 233 Nbr 50 Pack

Product Description

The VALUE COLLECTION ZMSCH90233 is a Dash 233 O-ring made from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 2.875 inches inside diameter, 3.125 inches outside diameter, and 0.125 inches thick with a round cross section. Rated at 90 durometer (extra hard), this O-ring delivers strong compression set resistance, tear resistance, and abrasion resistance. It performs across a temperature range of -40 to 250 degrees F, making it suitable for a broad range of service environments. Each package contains 50 O-rings.

This O-ring is used in hydraulic systems, pneumatic assemblies, plumbing connections, and mechanical seals where petroleum-based fluids are present. The Buna-N material provides excellent resistance to petroleum products including oils, fuels, and hydraulic fluids. Typical installations include pump seals, valve stems, fitting connections, and cylinder end caps in industrial, HVAC, and plumbing applications. Licensed plumbers, HVAC technicians, and industrial maintenance professionals commonly specify this dash size for both OEM replacement and new assembly work.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• 90 durometer extra-hard rating for high-compression sealing applications
• Operating temperature range of -40 to 250 degrees F
• Round cross section for reliable groove seating and consistent seal performance
• Meets SAE and MIL-Spec standards
• Packaged in quantities of 50 to support service stock and bulk replacement needs

Compatibility

Compatible with petroleum products including oils, fuels, and hydraulic fluids. Designed as an OEM-style replacement or new-install O-ring for any application specifying a Dash 233 size in Buna-N material. Not recommended for use with ozone-generating equipment, direct sunlight exposure, or fluids incompatible with nitrile elastomers.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or industrial mechanics during pump, valve, or fitting service. Always depressurize the system and shut off fluid supply before removing or replacing O-rings. Inspect the groove and mating surfaces for damage or contamination before seating the new O-ring. Avoid storing unused O-rings near motors, electrical equipment, or in direct sunlight, as ozone and UV exposure degrade nitrile rubber over time.