5.7MM CS X 111.6MM ID BLACK BUNA 70D

H5.7X111.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 111.6 mm (4.394 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 123 mm (4.84 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope. Supplementary detail from the product record: Metric O-RING, JIS P112.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists many alcohols, hydraulic fluids, 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 polar solvents or strong acids are present.

Maintenance and OEM teams specify it across fluid power, hydraulic and pneumatic systems, and agricultural equipment.

Stocked as H5.7X111.6 and sold individually. Unit weight is approximately 11.486 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.