-251 BLACK CHLOROPRENE 70D O-RING

APG stocks the N70251, an AS568-251 black Neoprene (Chloroprene) 70 Shore A O-Ring with an inside diameter of 5.109 in (129.77 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.387 in (136.83 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to moderate petroleum oil exposure, mild acids, and sunlight and salt spray. Neoprene (Chloroprene) offers good resilience across a moderate temperature band and strong performance in refrigeration circuits. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with aromatic hydrocarbons or strong oxidizing acids.

Typical settings include transit and rail, HVAC and refrigeration, and general industrial.

This item is sold individually under part number N70251. Unit weight is approximately 5.925 g and nominal inside diameter is listed as 5 1/8 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.