1.6MM CS X 8.1MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A with an inside diameter of 8.1 mm (0.319 in), a cross section of 1.6 mm (0.063 in), and an outside diameter of 11.3 mm (0.44 in), catalogued under part number H90M1.6X8.1. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, economical choice for high-volume maintenance programs. The compound resists water, propane and butane, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ketones or ozone and direct sunlight are present.

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

This item is sold individually under part number H90M1.6X8.1. Unit weight is approximately 0.0001 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.