568-355 HSN90 DURO ORINGS

HNBR O-Ring, 5.225 in ID x 0.21 CS, 90A, Green, -40 to 325°F

Status
Out of Stock
Est. Ship Date
29 Oct 2026
Material
HNBR
Dash Size
355
Durometer
90 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 1/4 inch
Nominal Outside Diameter
5 5/8 inch
Unit of Measure
EA
SKU:
HSN90355

Product Specification

-
The HSN90355 is an AS568-355 green HNBR (Hydrogenated Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 5.225 in (132.72 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.645 in (143.38 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

HNBR (Hydrogenated Nitrile) is specified here for oil resistance of nitrile with substantially better heat capability, excellent abrasion and tear strength. Expect good resistance to ozone and weathering, heat and oxidation, and petroleum oils and fuels. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Applications involving chlorinated hydrocarbons or strong oxidizing acids call for a different compound.

Common environments for this compound include engine timing systems, oilfield and downhole equipment, and commercial refrigeration.

Order part number HSN90355, sold individually. Unit weight is approximately 12.698 g. 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
HSN90355
Description
568-355 HSN90 DURO ORINGS
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
5.225 inch (132.72 mm)
Actual Outside Diameter
5.645 inch (143.38 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium