-145 BLACK BUNA 70D O-RING

APG stocks the H70MD145, an AS568-145 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.55 in (64.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.756 in (70 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. The compound resists water, hydraulic fluids, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones.

This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number H70MD145 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 9/16 inch. Review your operating media and conditions against this specification before installation. 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.