APG stocks the H5X118, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 118 mm (4.646 in), a cross section of 5 mm (0.197 in), and an outside diameter of 128 mm (5.04 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, low compression set under sustained load. This material stands up to water, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
Common environments for this compound include construction equipment, hydraulic and pneumatic systems, and automotive.
Stocked as H5X118 and sold individually. Unit weight is approximately 9.27 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.
description 5MM CS X 118MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 128 mm (5.04 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 118 mm (4.646 inch)
ProductCode Description O-Rings - Metric - Commodity