-242 BLACK BUNA 70D O-RING

The H70242 is an AS568-242 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.984 in (101.19 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.262 in (108.25 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against hydraulic fluids, greases and lubricants, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Typical settings include automotive, construction equipment, and fluid power.

H70242 ships individually. Unit weight is approximately 3.9654 g and nominal inside diameter is listed as 4 inch. 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.