Value Collection ZMSCH90235 O-ring Dash 235 Nbr 50-pack

Product Description

The VALUE COLLECTION ZMSCH90235 is a Dash 235 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 3.125 inches inside diameter, 3.375 inches outside diameter, and 0.125 inches thick with a round cross-section. Hardness is rated at 90 durometer, placing it in the extra-hard category for applications that demand high compression resistance. The operating temperature range spans -40 degrees F to 250 degrees F. These O-rings are sold in a package quantity of 50 and are appropriate for installation by licensed plumbers, HVAC technicians, and mechanical contractors working on fluid or gas sealing systems.

This O-ring is well suited for use with petroleum-based fluids and hydraulic media, making it a common choice in HVAC refrigerant circuit fittings, plumbing connections, hydraulic systems, and pneumatic assemblies. The Buna-N compound delivers excellent resistance to petroleum products along with strong tear and abrasion resistance, making it effective in demanding industrial and commercial maintenance environments. It should not be stored in direct sunlight or near motors and other electrical equipment that may generate ozone, as ozone exposure degrades NBR compounds.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent petroleum product resistance
• 90 durometer extra-hard rating for high compression-set resistance
• Wide temperature range: -40 degrees F to 250 degrees F
• Round cross-section, Dash 235 standard sizing
• Meets SAE and MIL-Spec standards
• Package of 50 units, minimum order quantity of 1

Compatibility

Compatible with petroleum products and suitable for use in hydraulic, pneumatic, and fluid-sealing assemblies requiring a Dash 235 NBR O-ring with a 90 durometer hardness rating.

Installation Notes

O-rings should be installed by a qualified plumber, HVAC technician, or mechanical contractor familiar with the applicable system. Always depressurize and de-energize the system before replacing seals. Lubricate the O-ring with a compatible lubricant prior to installation to prevent tearing during assembly. Do not store unused O-rings in direct sunlight or near ozone-generating equipment such as electric motors.