5MM CS X 177MM ID BLACK BUNA 70D

APG stocks the H5X177, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 177 mm (6.969 in), a cross section of 5 mm (0.197 in), and an outside diameter of 187 mm (7.36 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The compound resists many alcohols, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Typical settings include fluid power, general industrial maintenance, and construction equipment.

This item is sold individually under part number H5X177. Unit weight is approximately 13.711 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.