Value Collection ZMSCH70FDA219 O-ring Dash 219 Nbr 70A Fda

Product Description

The VALUE COLLECTION ZMSCH70FDA219 is a Dash 219 Buna-N (nitrile butadiene rubber) O-ring with a 1.296-inch inside diameter, 1.562-inch outside diameter, and a 0.125-inch (1/8 inch) thick round cross section. Rated at 70 Shore A hardness, this O-ring carries FDA approval and meets SAE and MIL-Spec standards. The white Buna-N compound delivers excellent resistance to petroleum products along with strong compression set, tear resistance, and abrasion resistance. It is installed by licensed plumbers, HVAC technicians, hydraulic system technicians, and mechanical contractors across a wide range of fluid-sealing applications.

This O-ring is suited for use in systems handling petroleum-based fluids, hydraulic oils, fuels, and compatible media. The Buna-N elastomer is the most widely used O-ring material in industrial and HVAC applications due to its broad chemical compatibility and reliable sealing performance across a working temperature range of -40 degrees F to 250 degrees F. The FDA-approved compound makes it appropriate for select food-processing and sanitary equipment applications where incidental contact compliance is required. Supplied in a package quantity of 10.

Key Features

• FDA-approved white Buna-N compound meets SAE and MIL-Spec standards
• 70 Shore A hardness rating for reliable sealing under compression
• Operating temperature range: -40 degrees F to 250 degrees F
• Round cross section with 0.125-inch thickness for standard groove fitment
• Excellent resistance to petroleum products, hydraulic fluids, and fuels
• Good tear and abrasion resistance with low compression set

Compatibility

Compatible with petroleum products and petroleum-based hydraulic fluids. Suitable for systems using Buna-N-compatible media. Store away from direct sunlight, ozone sources, and electrical equipment that may generate ozone, as these conditions degrade nitrile elastomers over time.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or mechanical contractors depending on the system type. Depressurize and isolate the system completely before removing the old O-ring or installing the new one. Lubricate the O-ring with a compatible fluid or approved O-ring lubricant prior to seating to avoid twisting or tearing during assembly. Do not use petroleum-incompatible lubricants with Buna-N seals.