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Polyurethane U-Seal, 4.63 Inch OD, 4.00 Inch ID, 0.56 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U31-4.00-56B
Alternate Part Numbers
Alternate Part Number
C1GK82
What kinda pressure can this seal handle, if I'm usin' it in a hydraulic system?
Question by: Eddie P on Aug 14, 2025, 1:17 PM
This U-seal is rated to handle pressure from 0 up to 6,000 PSI.
Answer by: Customer Support on Aug 15, 2025, 9:19 PM
Seal's rated up to 6,000 PSI, is that the working pressure or the burst rating?
Question by: Connie J on Aug 2, 2025, 5:11 PM
That's the working pressure range. It runs from 0 all the way up to 6,000 PSI, so it's built to handle serious hydraulic loads in regular operation, not just peak or burst conditions. For most cylinder and piston rod applications that fall within that range, this seal holds up without issue.
Answer by: Customer Support on Aug 4, 2025, 6:34 AM
i’ve got a groove set up for a 4 inch bore. is this u-seal the right size, or am i reading the numbers backwards?
Question by: Wayne H on Jan 26, 2026, 4:18 PM
For sizing, the inner diameter is 4.00 inches and the outer diameter is 4.625 inches, with a 0.5625 inch height. If your bore or gland is built around a 4.00 inch ID seal, those are the key dimensions to match up.
Answer by: Customer Support on Jan 28, 2026, 8:50 AM
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