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568-356 GREEN HNBR (HSN) 70 ORINGS

HNBR O-Ring, 5.35 in ID x 0.21 CS, 70A, Green, -40 to 325°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
HNBR
Dash Size
356
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
3/16 inch
Nominal Inside Diameter
5 3/8 inch
Nominal Outside Diameter
5 3/4 inch
Unit of Measure
EA
SKU:
HS70356

Product Specification

-
Ordered as HS70356, this is an AS568-356 green HNBR (Hydrogenated Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 5.35 in (135.89 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.77 in (146.56 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against sour gas and amine inhibitors, ozone and weathering, and heat and oxidation. HNBR (Hydrogenated Nitrile) is widely chosen for the oil resistance of nitrile with substantially better heat capability, long service life in refrigerant and oilfield duty. Service temperature is rated from -40°F (-40°C) through 325°F (162.8°C). It should not be specified for service in strong oxidizing acids or esters.

You will find this material specified across commercial refrigeration, engine timing systems, and oilfield and downhole equipment.

HS70356 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
HS70356
Description
568-356 GREEN HNBR (HSN) 70 ORINGS
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
5.35 inch (135.89 mm)
Actual Outside Diameter
5.77 inch (146.56 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium