Value Collection ZMSCH90164 O-ring 6.25 in Id Nbr Dash 164

Product Description

The VALUE COLLECTION ZMSCH90164 is a Dash 164 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), the most widely used elastomer in fluid sealing applications. It measures 6.25 inches inside diameter, 6.438 inches outside diameter, and 0.0937 inches thick with a round cross section. Rated at 90 durometer (Extra Hard), this O-ring delivers excellent compression set resistance along with strong tear and abrasion resistance. Its operating temperature range of -40 to 250 degrees F makes it suitable for a broad range of service environments. Plumbers, HVAC technicians, and industrial maintenance professionals install this type of O-ring in pumps, valves, cylinders, and fluid system fittings.

This O-ring is suited for use in systems handling petroleum-based fluids and products. It is commonly installed in hydraulic circuits, fuel systems, and lubrication lines where Buna-N material compatibility is confirmed. The 90 durometer rating makes it appropriate for higher-pressure dynamic or static sealing applications. It should not be stored in direct sunlight or near motors and electrical equipment that may generate ozone, as ozone exposure degrades NBR compounds over time. This item is packaged in quantities of 25 per package.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent resistance to petroleum products
• 90 durometer Extra Hard rating for high-pressure sealing applications
• Operating temperature range: -40 to 250 degrees F
• Round cross section, Dash 164 sizing standard
• Meets SAE and MIL-Spec standards
• Strong tear and abrasion resistance for demanding service conditions

Compatibility

Compatible with petroleum-based products and fluids. Designed for use in systems where Buna-N elastomer compatibility has been confirmed. Not recommended for use with ozone-generating environments or applications requiring FDA-compliant materials.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or industrial maintenance professional. Always depressurize and de-energize the system before removing or replacing O-rings. Inspect the seating groove for damage, debris, or corrosion prior to installation. Apply a compatible lubricant to the O-ring before seating to prevent twisting or tearing during assembly.