3MM CS X 70MM ID BLACK BUNA 90D

APG stocks the H90M3X70, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 70 mm (2.756 in), a cross section of 3 mm (0.118 in), and an outside diameter of 76 mm (2.99 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The compound resists water, hydraulic fluids, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.

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

Order part number H90M3X70, sold individually. Unit weight is approximately 2.2503 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.