Ordered as N70371, this is an AS568-371 black Neoprene (Chloroprene) 70 Shore A O-Ring measuring an inside diameter of 8.475 in (215.27 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 8.895 in (225.93 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Expect good resistance to ozone and weathering, sunlight and salt spray, and moderate petroleum oil exposure. That behavior comes from the compound itself: Neoprene (Chloroprene) is valued for strong performance in refrigeration circuits and good resilience across a moderate temperature band. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in weather sealing and enclosures, general industrial, and HVAC and refrigeration.
This item is sold individually under part number N70371. Unit weight is approximately 21.6713 g and nominal inside diameter is listed as 8 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description -371 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.210" (5.33MM) CS X 8.475" (215.26MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 8.475 inch (215.27 mm)
Actual_OD 8.895 inch (225.93 mm)
ProductCode Description O-Rings - Bulk - Commodity