Value Collection ZMSCH70FDA210 O-ring Dash 210 Buna-n Fda 25pk

Product Description

The VALUE COLLECTION ZMSCH70FDA210 is a Dash 210 O-ring manufactured from Buna-N (nitrile butadiene rubber), the most widely used elastomer in fluid sealing applications. It measures 0.734 inches inside diameter, 1.0000 inches outside diameter, and 0.1250 inches in cross-section thickness. The round cross-section profile seats cleanly in standard O-ring grooves. Rated for a hardness of 70 Shore A, this O-ring balances compression set resistance with flexibility across a broad service temperature range of -40 degrees F to 250 degrees F. It carries FDA approval and meets SAE and MIL-Spec standards, making it suitable for both food-grade and general mechanical applications. Each order is fulfilled in a pack of 25.

Buna-N O-rings in the Dash 210 size are standard fare in HVAC refrigerant service fittings, plumbing shutoff valves, hydraulic and pneumatic systems, pool and spa equipment, and fuel-handling assemblies. The Buna-N compound delivers excellent resistance to petroleum-based fluids, oils, and greases encountered in these systems. HVAC technicians, plumbers, and pool service professionals reach for this size when servicing pump seals, valve stems, compression fittings, and flare unions that require a reliable static or low-cycle dynamic seal.

Key Features

• Buna-N (nitrile) compound provides excellent resistance to petroleum products, oils, and hydraulic fluids
• FDA approved white color formulation suitable for food-grade and potable-water-adjacent applications
• 70 Shore A hardness rating delivers strong compression set resistance and tear and abrasion resistance
• Rated from -40 degrees F to 250 degrees F for broad service temperature coverage
• Meets SAE and MIL-Spec standards for dimensional and material compliance
• Round cross-section, Dash 210 designation seats in any standard AS568 Dash 210 groove
• Pack of 25 units minimizes downtime during multi-unit service calls or scheduled maintenance

Compatibility

Designed as a direct-fit replacement for any application calling out an AS568 Dash 210 O-ring in Buna-N. Compatible with petroleum products, oils, and hydraulic fluids. Not recommended for exposure to ozone, direct sunlight during storage, or environments near motors and electrical equipment that generate ozone.

Installation Notes

Install by a qualified plumber, HVAC technician, or pool service professional following applicable system pressure ratings and local codes. Shut off fluid supply and depressurize the system fully before removing the existing O-ring. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent rollover and pinching during assembly. Avoid exposing Buna-N seals to ozone-generating equipment or direct sunlight during storage.