3MM CS X 19.2MM ID BLACK BUNA 90D

APG stocks the H90M3X19.2, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 19.2 mm (0.756 in), a cross section of 3 mm (0.118 in), and an outside diameter of 25.2 mm (0.99 in). 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 economical choice for high-volume maintenance programs and most widely specified general-purpose sealing elastomer. The material holds up against propane and butane, petroleum-based oils, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in polar solvents or strong acids.

Maintenance and OEM teams specify it across automotive, agricultural equipment, and fluid power.

Reference part number H90M3X19.2 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.