-247 BLACK BUNA 70D O-RING

APG stocks the H70247, an AS568-247 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.609 in (117.07 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.887 in (124.13 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to water, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Typical settings include agricultural equipment, hydraulic and pneumatic systems, and fluid power.

H70247 ships individually. Unit weight is approximately 4.5285 g and nominal inside diameter is listed as 4 5/8 inch. Review your operating media and conditions against this specification before installation.