1.8MM CS X 12.5MM ID BLACK BUNA 70D

The H1.8X12.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 12.5 mm (0.492 in), a cross section of 1.8 mm (0.071 in), and an outside diameter of 16.1 mm (0.63 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) offers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The compound resists greases and lubricants, many alcohols, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Maintenance and OEM teams specify it across automotive, construction equipment, and agricultural equipment.

Reference part number H1.8X12.5 when ordering; the item is sold individually. Unit weight is approximately 0.1417 g. 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.