-256 BLACK EPDM 80D O-RING

EPDM O-Ring, 5.734 in ID x 0.139 CS, 80A, Black, -65 to 300°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
EPDM (EPR)
Dash Size
256
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
1/8 inch
Nominal Inside Diameter
5 3/4 inch
Nominal Outside Diameter
6 inch
Unit of Measure
EA
SKU:
E80PC256
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Product Specification

-
The E80PC256 is an AS568-256 black EPDM (EPR) 80 Shore A O-Ring measuring an inside diameter of 5.734 in (145.64 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.012 in (152.7 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

This material stands up to ketones, ozone, UV and weathering, and brake fluid. That behavior comes from the compound itself: EPDM (EPR) delivers excellent hot water and steam resistance, strong performance in outdoor and exposed installations. Service temperature is rated from -65°F (-53.9°C) through 300°F (148.9°C). It should not be specified for service in mineral oil-based lubricants or petroleum oils and fuels.

Common environments for this compound include brake and phosphate ester systems, outdoor equipment, and potable water applications.

Reference part number E80PC256 when ordering; the item is sold individually. 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.
Item
E80PC256
Description
-256 BLACK EPDM 80D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
5.734 inch (145.64 mm)
Actual Outside Diameter
6.012 inch (152.7 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity