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-309 BLACK EPDM 80D O-RING

EPDM O-Ring, 0.412 in ID x 0.21 CS, 80A, Black, -65 to 300°F

Status
Out of Stock
Est. Ship Date
22 Oct 2026
Material
EPDM (EPR)
Dash Size
309
Durometer
80 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-65°F (-53.9°C)
Maximum Temperature
300°F (149°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
7/16 inch
Nominal Outside Diameter
13/16 inch
Unit of Measure
EA
SKU:
E80PC309

Product Specification

-
Ordered as E80PC309, this is an AS568-309 black EPDM (EPR) 80 Shore A O-Ring supplied with an inside diameter of 0.412 in (10.46 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 0.832 in (21.13 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

EPDM (EPR) is specified here for good electrical insulating characteristics and very good flexibility at low temperature. Expect good resistance to phosphate ester hydraulic fluids, water and steam, and brake fluid. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C). It is not the right choice where petroleum oils and fuels or mineral oil-based lubricants are present.

It sees regular use in solar and roofing assemblies, brake and phosphate ester systems, and water and steam systems.

This item is sold individually under part number E80PC309. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
E80PC309
Description
-309 BLACK EPDM 80D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
0.412 inch (10.46 mm)
Actual Outside Diameter
0.832 inch (21.13 )
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity