Value Collection ZMSCH70217 O-ring Dash 217 Nitrile 70A

Product Description

The VALUE COLLECTION ZMSCH70217 is a Dash 217 Nitrile Butadiene Rubber (Buna-N) O-ring designed for fluid and gas sealing in hydraulic, pneumatic, plumbing, and HVAC applications. It measures 1.188 inches inside diameter by 1.438 inches outside diameter with a 0.125-inch round cross-section thickness and a 70-durometer hardness rating. The Buna-N compound delivers excellent resistance to petroleum-based fluids, hydraulic oils, and fuels, making it the most widely used elastomer in trade sealing applications. Operating temperature range spans -40 degrees F to 250 degrees F. This O-ring is sold in a quantity of 100 per package and is installed by HVAC technicians, plumbers, and mechanical tradespeople.

This O-ring is suited for residential and commercial sealing applications involving petroleum products, hydraulic systems, pneumatic fittings, and plumbing connections. Its round cross-section and standard Dash 217 sizing make it a direct drop-in for any application calling for a Dash 217 O-ring. The Buna-N material is compatible with petroleum-based fluids but should not be used with ozone, strong acids, ketones, or chlorinated solvents. It should not be stored in direct sunlight or near motors and electrical equipment that may generate ozone.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction for excellent petroleum product resistance
• 70-durometer hardness with hard hardness rating for reliable compression sealing
• Round cross-section profile conforming to standard Dash 217 dimensions
• Operating range of -40 degrees F to 250 degrees F
• Meets SAE and MIL-Spec standards
• Package quantity of 100 units; minimum order quantity of 1

Compatibility

Designed as a standard Dash 217 O-ring replacement compatible with petroleum products and suitable for use in hydraulic, pneumatic, plumbing, and HVAC sealing applications where a Buna-N elastomer is specified.

Installation Notes

O-rings of this type are installed by licensed plumbers, HVAC technicians, and hydraulic system mechanics. Always depressurize and de-energize the system before replacing any sealing components. Lightly lubricate the O-ring with a compatible fluid or assembly lubricant prior to installation to prevent tearing during seating. Do not overstretch the O-ring during installation, and inspect the mating groove for wear or damage before fitting the new seal.