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Homogeneous Buna-N U-Seal, 1.50 Inch OD, 0.19 Inch ID, Inch Height

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Description & Features

Designed for robust performance in demanding industrial environments, the Homogeneous Buna-N U-Seal offers reliable sealing with its 80 durometer rubber construction. Engineered by Hercules Sealing Products, this U-seal is ideal for hydraulic applications requiring a secure and durable seal within pressure ranges from 0 to 1,000 PSI and temperatures from -40°F to 250°F.

The U-seal features an outer diameter of 1.50 inches and an inner diameter of 0.19 inches, with a precise cross-section of 0.1563 inches, ensuring a tailored fit for your hydraulic systems. The homogeneous Buna-N material provides excellent resistance to oil and abrasion, making it a practical choice for various industrial applications.

SKU: HRU15-1.18-15

Supplier Part Number (MPN): HRU15-1.18-15

Alternate Part Numbers: C1CY65

Specifications

Brand
HERCULES® SEALING PRODUCTS
Dimensions
5/32 in THK
Durometer
80
Inside Diameter
1-3/16 in
Material
Buna-N
Series
HRU Series

Product Questions & Answers (3)

Question by: Denise W on Nov 30, 2025, 8:46 PM
What kinda pressure can this lil' seal handle? I'm usin' it in a hydraulic system that can get pretty cranked up.
Answer by: Customer Support on Dec 2, 2025, 6:13 AM
It's rated to handle pressures from 0 to 1,000 PSI, so it should hold up under decent pressure.
Question by: Howard W on Oct 7, 2025, 9:34 PM
What kind of temps can this seal hold up in? Got equipment runnin hot and cold both, need somethin that won't give out on me.
Answer by: Customer Support on Oct 9, 2025, 6:11 AM
Buna-N handles a pretty wide swing. This U-seal is rated from -40°F all the way up to 250°F, so it can take both ends of that range without breaking down. As long as your system stays within those bounds, you should be in good shape.
Question by: Frank R on Oct 17, 2025, 9:01 AM
trying to replace a u-cup i pulled out, are these dimensions 1.50 OD and about 0.19 ID?
Answer by: Customer Support on Oct 18, 2025, 12:35 PM
Fit comes down to matching the seal sizes. This U-seal is listed at 1.50 inch OD and 0.188 inch ID, with a 0.1563 inch cross section and 0.1563 inch height.

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