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568-474 HSN90 DURO ORINGS

HNBR O-Ring, 24.94 in ID x 0.275 CS, 90A, Green, -40 to 325°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
HNBR
Dash Size
474
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
1/4 inch
Nominal Inside Diameter
25 inch
Nominal Outside Diameter
25 1/2 inch
Unit of Measure
EA
SKU:
HSN90474

Product Specification

-
This o-ring is supplied in AS568-474 green HNBR (Hydrogenated Nitrile) 90 Shore A supplied with an inside diameter of 24.94 in (633.48 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 25.49 in (647.45 mm), catalogued under part number HSN90474. It remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to heat and oxidation, petroleum oils and fuels, and sour gas and amine inhibitors. HNBR (Hydrogenated Nitrile) offers excellent abrasion and tear strength, the oil resistance of nitrile with substantially better heat capability. Continuous operating temperature is published at -40°F (-40°C) to 325°F (162.8°C). Verify compatibility before use with esters or strong oxidizing acids.

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

Reference part number HSN90474 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
HSN90474
Description
568-474 HSN90 DURO ORINGS
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
24.94 inch (633.48 mm)
Actual Outside Diameter
25.49 inch (647.45 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium