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Polyurethane U-Seal, 5.50 Inch OD, 5.00 Inch ID, 0.38 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U25-5.00-37B
Alternate Part Numbers
Alternate Part Number
C1DP69 ,
Alternate Part Number
MI-01198349 ,
Alternate Part Number
MINO-00407X60384
Got a hydraulic cylinder that takes a 5 inch bore and I need to replace the piston seal. this urethane u-seal gonna hold up at higher pressures?
Question by: Earl P on Aug 31, 2025, 8:17 AM
Urethane handles up to 6,000 PSI with this seal, so most hydraulic cylinder work falls well within that range. The beveled lip design helps with film breaking during reciprocating motion, which matters a lot for piston applications where you need consistent sealing through repeated cycles. Just confirm your bore matches the 5.50 inch OD and your rod or piston matches the 5.00 inch ID before ordering.
Answer by: Customer Support on Sep 1, 2025, 10:39 AM
got a cylinder that takes a 5 inch rod seal, is this u-seal the right size or am i readin it wrong
Question by: Marvin B on Jan 29, 2026, 9:20 AM
Fit comes down to the seal dimensions. This U-seal is 5.00 inch ID, 5.50 inch OD, and 0.375 inch height, with a 0.25 inch cross section. It is also a deep-type U-seal since the height is greater than the cross section.
Answer by: Customer Support on Jan 30, 2026, 9:58 AM
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