Value Collection ZMSCH70FDA326 O-ring Dash 326 Nbr Fda

Product Description

The VALUE COLLECTION ZMSCH70FDA326 is a Dash 326 Buna-N (Nitrile Butadiene Rubber) O-ring with a round cross section, measuring 1.625 inches inside diameter, 2 inches outside diameter, and 0.1875 inches (3/16 inches) thick. It carries a 70 Shore A hardness rating and meets FDA approval requirements, making it suitable for applications where incidental contact with food or controlled substances is a concern. This O-ring is sold in packages of 10 and is installed by plumbers, HVAC technicians, and industrial maintenance professionals in fluid and pneumatic sealing applications.

This O-ring is designed for use in systems handling petroleum-based fluids, hydraulic oils, and fuels. Its Buna-N elastomer compound offers strong resistance to petroleum products, good compression set performance, and solid tear and abrasion resistance. Typical applications include pump seals, valve bodies, hydraulic fittings, and fluid system connections in both residential and commercial settings. Working temperature range runs from -40 degrees F to 250 degrees F, covering a wide range of service conditions.

Key Features

• FDA approved white Buna-N compound suitable for controlled-contact applications
• Operating range of -40 degrees F to 250 degrees F for broad service use
• 70 Shore A hardness rating provides firm sealing under compression
• Excellent resistance to petroleum products, hydraulic oils, and fuels
• Round cross section ensures consistent seating in standard O-ring grooves
• Compliant with SAE and MIL-Spec standards

Compatibility

Compatible with petroleum products and petroleum-based hydraulic fluids. Designed as an OEM-style replacement or service O-ring for Dash 326 groove applications in plumbing, HVAC, hydraulic, and industrial fluid systems. Should not be used with ozone-generating equipment or in direct sunlight storage conditions.

Installation Notes

Installation is performed by plumbers, HVAC technicians, or industrial mechanics. Always depressurize and drain the system before replacing O-rings in fluid or pneumatic circuits. Lightly lubricate the O-ring with a compatible fluid prior to seating to prevent tearing during installation. Avoid storing unused O-rings near motors, electrical equipment, or direct sunlight, as ozone exposure degrades Buna-N elastomer over time.