APG stocks the N70279, an AS568-279 black Neoprene (Chloroprene) 70 Shore A O-Ring built to an inside diameter of 12.984 in (329.79 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 13.262 in (336.85 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Neoprene (Chloroprene) offers a balanced combination of oil and weather resistance, good resilience across a moderate temperature band. The material holds up against sunlight and salt spray, moderate petroleum oil exposure, and ozone and weathering. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where chlorinated solvents or strong oxidizing acids are present.
It sees regular use in marine equipment, general industrial, and transit and rail.
Stocked as N70279 and sold individually. Unit weight is approximately 14.348 g and nominal inside diameter is listed as 13 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -279 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.139" (3.53MM) CS X 12.984" (329.79MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 12.984 inch (329.79 mm)
Actual_OD 13.262 inch (336.85 mm)
ProductCode Description O-Rings - Bulk - Commodity