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HERCULES ORING OD 1-1/8 W 1/8

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Description & Features

The Hercules O-Ring, with a nominal OD of 1-1/8" and a width of 1/8", is designed for reliable sealing in hydraulic applications. Its actual outer diameter measures 1.14", with an inner diameter of 0.86" and a width of 0.14". Manufactured by Hercules Sealing Products, this HERCULES ORING OD 1-1/8 W 1/8 ensures a tight, dependable fit.

SKU: 568-212

Supplier Part Number (MPN): 568-212

Alternate Part Numbers: A-212, C1CE60, MI-08740416, MINO-00407X90416

Specifications

Brand
HERCULES® SEALING PRODUCTS
Color
Black
Cross Section Shape
Round
Dash Size
212
Durometer
70A
Material
Buna-N
Series
568 Series
Suitable For Use With
Hydraulic Cylinders
System of Measurement
Imperial

Product Questions & Answers (3)

Question by: Jimmy M on Jul 30, 2025, 10:17 AM
i got an o-ring that measures about 1.14 on the outside and around .14 thick, is that the same as this one?
Answer by: Customer Support on Jul 31, 2025, 1:25 PM
Match it up by the actual dimensions. This HERCULES O-ring has an actual OD of 1.14 inch and an actual width (cross section) of 0.14 inch, with an actual ID of 0.86 inch.
Question by: Denise W on Apr 1, 2025, 2:37 PM
what's the actual outside diameter on this o-ring? the nominal says 1-1/8 but I want to make sure before I order
Answer by: Customer Support on Apr 3, 2025, 7:59 AM
The actual outside diameter measures 1.14 inches, so it runs just a hair under the nominal 1-1/8 figure. The actual inside diameter comes in at 0.86 inches, and the cross-section width is 0.14 inches. Worth double-checking those actual dimensions against your groove specs before ordering, since nominal sizing can sometimes throw folks off.
Question by: Patty H on Aug 17, 2025, 6:16 PM
trying to match up an old A-212 o-ring, is this the same one or am i off?
Answer by: Customer Support on Aug 19, 2025, 8:52 AM
Match it by the cross references and the sizes. This one carries the old SKU A-212 and the supplier part number 568-212, with nominal dimensions of 7/8 inch ID, 1-1/8 inch OD, and 1/8 inch width.

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