N70156 is an AS568-156 black Neoprene (Chloroprene) 70 Shore A O-Ring supplied with an inside diameter of 4.237 in (107.62 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.443 in (112.85 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.
It resists refrigerants and ammonia, mild acids, and sunlight and salt spray. Neoprene (Chloroprene) is known for strong performance in refrigeration circuits, a balanced combination of oil and weather resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to aromatic hydrocarbons or ketones will shorten service life.
You will find this material specified across weather sealing and enclosures, general industrial, and marine equipment.
Order part number N70156, sold individually. Unit weight is approximately 2.61 g and nominal inside diameter is listed as 4 1/4 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Description -156 BLACK CHLOROPRENE 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 4.237 inch (107.62 mm)
Actual Outside Diameter 4.443 inch (112.85 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity