4.5MM CS X 53MM ID BLACK BUNA 70D

H4.5X53 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 53 mm (2.087 in), a cross section of 4.5 mm (0.177 in), and an outside diameter of 62 mm (2.44 in). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

It resists water, hydraulic fluids, and many alcohols. Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Maintenance and OEM teams specify it across general industrial maintenance, automotive, and fluid power.

H4.5X53 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.