-437 WHITE BUNA 70D FDA O-RING

APG stocks the H70FDA437, an AS568-437 white Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5.975 in (151.77 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.525 in (165.74 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. It resists water, many alcohols, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or ketones will shorten service life.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. Common environments for this compound include agricultural equipment, hydraulic and pneumatic systems, and fluid power.

This item is sold individually under part number H70FDA437. Unit weight is approximately 24.9 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.