This o-ring is supplied in AS568-429 black EPDM (EPR) 70 Shore A with an inside diameter of 4.975 in (126.37 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.525 in (140.34 mm), catalogued under part number E70429. It compresses into its gland to block fluid or gas migration across a joint.
It resists dilute acids and alkalis, ozone, UV and weathering, and ketones. That behavior comes from the compound itself: EPDM (EPR) delivers very good flexibility at low temperature, excellent hot water and steam resistance. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service. Exposure to aromatic hydrocarbons or mineral oil-based lubricants will shorten service life.
Common environments for this compound include HVAC and refrigeration, water and steam systems, and potable water applications.
Order part number E70429, sold individually. Unit weight is approximately 0.0179 g and nominal inside diameter is listed as 5 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -429 BLACK EPDM 70D O-RING
uf_description2 0.275" (6.99MM) CS X 4.975" (126.36MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 4.975 inch (126.37 mm)
Actual_OD 5.525 inch (140.34 mm)
ProductCode Description O-Rings - Bulk - Commodity