Ordered as N70245, this is an AS568-245 black Neoprene (Chloroprene) 70 Shore A O-Ring measuring an inside diameter of 4.359 in (110.72 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.637 in (117.78 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
It resists refrigerants and ammonia, ozone and weathering, and sunlight and salt spray. Neoprene (Chloroprene) is specified for good resilience across a moderate temperature band and dependable general-purpose sealing in exposed installations. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with aromatic hydrocarbons or ketones.
It sees regular use in transit and rail, HVAC and refrigeration, and weather sealing and enclosures.
Reference part number N70245 when ordering; the item is sold individually. Unit weight is approximately 4.923 g and nominal inside diameter is listed as 4 3/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -245 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.139" (3.53MM) CS X 4.359" (110.72MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 4.359 inch (110.72 mm)
Actual_OD 4.637 inch (117.78 mm)
ProductCode Description O-Rings - Bulk - Commodity