-278 BLACK EPDM 70D O-RING

EPDM O-Ring, 11.984 in ID x 0.139 CS, 70A, Black, -65 to 300°F

Status
Available
Est. Ship Date
2 Nov 2026
Material
EPDM (EPR)
Dash Size
278
Durometer
70 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
12 inch
Nominal Outside Diameter
12 1/4 inch
Unit of Measure
EA
SKU:
E70278
Please login to see price and add to cart

Product Specification

-
E70278 is an AS568-278 black EPDM (EPR) 70 Shore A O-Ring built to an inside diameter of 11.984 in (304.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 12.262 in (311.45 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, EPDM (EPR) is valued for excellent hot water and steam resistance, strong performance in outdoor and exposed installations. It resists ozone, UV and weathering, dilute acids and alkalis, and phosphate ester hydraulic fluids. Continuous operating temperature is published at -65°F (-53.9°C) to 300°F (148.9°C).

Common environments for this compound include outdoor equipment, HVAC and refrigeration, and solar and roofing assemblies.

This item is sold individually under part number E70278. Unit weight is approximately 11.0924 g. 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
E70278
Description
-278 BLACK EPDM 70D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
11.984 inch (304.39 mm)
Actual Outside Diameter
12.262 inch (311.45 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity