-337 WHITE BUNA 70D FDA O-RING

The H70FDA337 is an AS568-337 white Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 2.975 in (75.57 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.395 in (86.23 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material holds up against propane and butane, greases and lubricants, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across construction equipment, fluid power, and agricultural equipment.

Stocked as H70FDA337 and sold individually. Unit weight is approximately 7.613 g and nominal inside diameter is listed as 3 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.