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Polyurethane U-Seal, 1.38 Inch OD, 1.06 Inch ID, 0.25 Inch Height

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Description & Features

The Hercules Sealing Products Polyurethane U-Seal is engineered for demanding industrial applications, featuring an outer diameter of 1.38 inches, an inner diameter of 1.06 inches, and a height of 0.25 inches. This U-seal boasts a durable urethane construction that ensures reliable performance across a broad pressure range of 0 to 6,000 PSI, making it suitable for high-pressure environments.

Its unique beveled lip design is crafted to provide superior film breaking capabilities, enhancing seal efficiency. The seal maintains operational integrity within a temperature range of -65°F to 220°F, making it ideal for various industrial settings. Notably, the seal's height exceeds its cross-section, further emphasizing its robust design attributes.

SKU: U12-1.12-25B

Supplier Part Number (MPN): U12-1.12-25B

Alternate Part Numbers: C1DM93, MI-01199082, MINO-00407X60472

Specifications

Brand
HERCULES® SEALING PRODUCTS
Dimensions
1/4 in H
Durometer
95A
Inside Diameter
1-1/8 in
Material
Polyurethane
Series
800 Series

Product Questions & Answers (3)

Question by: Darryl R on May 21, 2025, 7:18 PM
got a cylinder groove set up for a 1.375 OD u-cup, is this seal the right size or am i off a hair?
Answer by: Customer Support on May 23, 2025, 6:33 AM
Fit comes down to the seal’s actual dimensions. This U-seal measures 1.375 inch OD, 1.0625 inch ID, and 0.25 inch height with a 0.125 inch cross section, so it matches a 1.375 OD requirement exactly and pairs to a 1.0625 ID.
Question by: Ralph W on Jun 19, 2025, 10:21 AM
What kinda temps can this here U-seal handle, ya know, without failin'?
Answer by: Customer Support on Jun 21, 2025, 8:03 AM
Built to last, this U-seal is rated to withstand temperatures from -65°F to 220°F, making it suitable for a wide range of industrial environments.
Question by: Darryl J on Nov 23, 2025, 12:07 PM
What kind of pressure can this u-seal handle before it starts giving out?
Answer by: Customer Support on Nov 24, 2025, 3:40 PM
Rated from 0 all the way up to 6,000 PSI, so it holds up well in high-pressure hydraulic setups. The urethane construction is what gives it that range, and the beveled lip design helps it maintain a clean seal under load rather than letting fluid sneak past.

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