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Polyurethane U-Seal, 3.00 Inch OD, 2.63 Inch ID, 0.38 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U18-2.62-37B
Alternate Part Numbers
Alternate Part Number
C1DN74
Reckon this'd hold up in a hydraulic system running around 5500 PSI?
Question by: Jean M on Nov 12, 2025, 9:08 AM
This U-seal is rated to handle pressures up to 6,000 PSI, so it should work fine in your system as long as you stay below that threshold.
Answer by: Customer Support on Nov 14, 2025, 6:33 AM
got a groove that takes a 3.00 OD seal, will this U-seal match up with a 2.625 ID and 0.375 height?
Question by: Ray R on Feb 20, 2026, 9:57 PM
Fit comes down to the seal’s actual dimensions, and this one is 3.00 inch OD, 2.625 inch ID, and 0.375 inch height with a 0.1875 inch cross section. It’s a Type B U-seal where the height is greater than the cross section, so it’s built for grooves that match that profile.
Answer by: Customer Support on Feb 22, 2026, 1:01 PM
Got a hydraulic cylinder with a 3-inch rod groove that needs a new u-seal. This one gonna fit right or do I need to double-check something first?
Question by: Brenda H on Aug 10, 2025, 10:00 AM
For a standard rod groove sized to a 3.00-inch OD and 2.625-inch ID, this seal drops right in. The height runs 0.375 inches and the cross section comes in at 0.1875 inches, so as long as your groove is cut to those dimensions, you're in good shape. It's a Type B configuration, meaning the height is greater than the cross section, so just confirm your groove geometry matches that profile before installing.
Answer by: Customer Support on Aug 12, 2025, 6:31 AM
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