3.5MM CS X 35.2MM ID BLACK BUNA 70D

The H3.5X35.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 35.2 mm (1.386 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 42.2 mm (1.66 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope. Source specification: Metric O-RING, JIS P35.5.

The material holds up against hydraulic fluids, greases and lubricants, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers strong abrasion and tear resistance, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Typical settings include automotive, construction equipment, and hydraulic and pneumatic systems.

Reference part number H3.5X35.2 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.