Value Collection ZMSCH70163 O-ring 6 Inch Id Nbr Dash 163

Product Description

The VALUE COLLECTION ZMSCH70163 is a Dash 163 O-ring manufactured from Nitrile Butadiene Rubber (Buna-N), one of the most widely used elastomers in fluid sealing applications. It measures 6 inches inside diameter, 6.188 inches outside diameter, and 0.0937 inches thick with a round cross section. Hardness is rated at 70 Shore A. This O-ring delivers excellent resistance to petroleum-based fluids, strong compression set performance, and good tear and abrasion resistance. It is suited for use in plumbing, hydraulic, and HVAC systems where petroleum product exposure is a routine service condition. Licensed tradespeople and experienced technicians install this part as a replacement seal in pumps, valves, fittings, and mechanical assemblies.

This O-ring is appropriate for residential and light commercial applications where a standard Buna-N seal in the Dash 163 size is specified. Typical install scenarios include pump shaft seals, valve body seals, and pipe flange connections in plumbing and HVAC systems. The part is rated for service from -40 degrees F to 250 degrees F, making it suitable for a wide range of operating environments. It meets SAE and MIL-Spec standards. Compatible materials include petroleum products and petroleum-based hydraulic fluids. Each package contains 25 O-rings.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent petroleum fluid resistance
• Dash 163 standard sizing: 6 inches ID, 6.188 inches OD, 0.0937 inches thick
• Round cross section for consistent sealing in standard O-ring grooves
• 70 Shore A hardness rating for firm, reliable compression set
• Operating temperature range: -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• Sold in a package of 25 units

Compatibility

Designed as a standard Dash 163 Buna-N O-ring replacement for use in pumps, valves, fittings, and mechanical assemblies that specify a 6 inch ID nitrile seal compatible with petroleum-based fluids.

Installation Notes

O-ring installation should be performed by a qualified plumber, HVAC technician, or mechanic following the equipment manufacturer's service procedures. Always depressurize and de-energize the system before removing any sealing components. Inspect the O-ring groove for nicks, corrosion, or debris before installing the new seal. Do not store unused O-rings in direct sunlight or near motors or other electrical equipment that may generate ozone, as this degrades Buna-N elastomer.