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568-266 GREEN HNBR (HSN) 70 ORINGS

HNBR O-Ring, 7.984 in ID x 0.139 CS, 70A, Green, -40 to 325°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
HNBR
Dash Size
266
Durometer
70 Shore A
Cross Section Type
Round
Color
Green
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
325°F (163°C)
Nominal Cross Section
1/8 inch
Nominal Inside Diameter
8 inch
Nominal Outside Diameter
8 1/4 inch
Unit of Measure
EA
SKU:
HS70266

Product Specification

-
Part number HS70266 is an AS568-266 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring built to an inside diameter of 7.984 in (202.79 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 8.262 in (209.85 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Expect good resistance to ozone and weathering, sour gas and amine inhibitors, and petroleum oils and fuels. HNBR (Hydrogenated Nitrile) is specified for strong resistance to rapid gas decompression, improved ozone and weathering resistance over standard nitrile. Rated temperature range runs from -40°F (-40°C) to 325°F (162.8°C) in continuous service. It should not be specified for service in ketones or strong oxidizing acids.

You will find this material specified across heavy-duty powertrain, oilfield and downhole equipment, and automotive air conditioning.

Reference part number HS70266 when ordering; the item is sold individually. Nominal inside diameter is listed as 8 inch. Review your operating media and conditions against this specification before installation.
Item
HS70266
Description
568-266 GREEN HNBR (HSN) 70 ORINGS
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
7.984 inch (202.79 mm)
Actual Outside Diameter
8.262 inch (209.85 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium