-134 BLACK BUNA 70D O-RING

The H70134 is an AS568-134 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.862 in (47.29 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.068 in (52.53 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to propane and butane, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ketones.

Maintenance and OEM teams specify it across fluid power, automotive, and hydraulic and pneumatic systems.

Reference part number H70134 when ordering; the item is sold individually. Unit weight is approximately 0.0011 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.