Value Collection ZMSCH70164 O-ring Dash 164 Buna-n

Product Description

The VALUE COLLECTION ZMSCH70164 is a Dash 164 O-ring manufactured from Buna-N (Nitrile Butadiene Rubber), one of the most widely used elastomers in fluid sealing applications. It measures 6.25 inches inside diameter and 6.438 inches outside diameter, with a cross-section thickness of 0.094 inches and a round cross-section profile. Rated at 70 Shore A hardness, this O-ring delivers reliable compression set resistance along with strong tear and abrasion resistance. It is suited for static and dynamic sealing in systems that contact petroleum-based fluids. Licensed plumbers, HVAC technicians, and industrial maintenance professionals install this type of seal in fluid handling equipment and mechanical assemblies.

This O-ring is used in residential and commercial plumbing, HVAC, and industrial fluid-handling systems where petroleum-compatible sealing is required. Its Buna-N compound performs across a broad temperature range of -40 degrees F to 250 degrees F, making it appropriate for both low-temperature and moderately elevated service conditions. Common applications include pump housings, valve bodies, pipe flanges, and hydraulic system fittings where a large-diameter face or groove seal is needed. Each package contains 25 O-rings sold as a unit.

Key Features

• Buna-N (Nitrile Butadiene Rubber) construction with excellent petroleum product resistance
• Dash 164 standard sizing: 6.25 inches ID x 6.438 inches OD x 0.094 inches thick
• 70 Shore A hardness rating for reliable compression and sealing force
• Operating temperature range from -40 degrees F to 250 degrees F
• Round cross-section profile for consistent groove fit and seal integrity
• Meets SAE and MIL-Spec standards

Compatibility

Designed as a standard Dash 164 O-ring replacement for any system or assembly that calls out a Dash 164 groove in Buna-N or Nitrile material. Compatible with petroleum-based fluids including oils, fuels, and hydraulic fluids. Not recommended for use with ozone-rich environments, direct sunlight exposure, or near electrical equipment that may generate ozone.

Installation Notes

Shut down and depressurize the system completely before removing the existing seal or installing a new O-ring. Inspect the mating groove for burrs, scoring, or debris that could damage the new seal. A light application of compatible lubricant aids seating and reduces the risk of twisting or rolling during installation. Discard any O-rings that show visible nicks, flat spots, or surface degradation before use.