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-378 BLACK EPDM 80D O-RING

EPDM O-Ring, 10.475 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
378
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
10 1/2 inch
Nominal Outside Diameter
10 7/8 inch
Unit of Measure
EA
SKU:
E80PC378

Product Specification

-
E80PC378 is an AS568-378 black EPDM (EPR) 80 Shore A O-Ring supplied with an inside diameter of 10.475 in (266.07 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.895 in (276.73 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

EPDM (EPR) is specified here for strong performance in outdoor and exposed installations, outstanding weather, ozone and sunlight resistance. The material holds up against water and steam, ozone, UV and weathering, and ketones. Rated temperature range runs from -65°F (-53.9°C) to 300°F (148.9°C) in continuous service.

It sees regular use in water and steam systems, brake and phosphate ester systems, and potable water applications.

Order part number E80PC378, sold individually. Nominal inside diameter is listed as 10 1/2 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
E80PC378
Description
-378 BLACK EPDM 80D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
10.475 inch (266.07 mm)
Actual Outside Diameter
10.895 inch (276.73 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity