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Polyurethane U-Seal, 5.00 Inch OD, 4.50 Inch ID, 0.38 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U25-4.50-37B
Alternate Part Numbers
Alternate Part Number
C1DP61 ,
Alternate Part Number
MI-01198305 ,
Alternate Part Number
MINO-00407X60378
Got a hydraulic cylinder with a 4.50 inch rod and a 5.00 inch bore housing, this seal gonna drop right in, or is there more to fittin' it than just the numbers matchin up?
Question by: Billy B on Feb 8, 2026, 6:45 AM
For a rod seal application, the 4.50 inch ID seats against the rod and the 5.00 inch OD seats into the housing bore, so if your hardware matches those dimensions you're in good shape on fit. The height on this one is 0.375 inches, which puts it in the deep-type profile category since that height clears the 0.25 inch cross section. Just make sure your gland depth accommodates that 0.375 inch height before you go pressing it in.
Answer by: Customer Support on Feb 9, 2026, 6:02 PM
got a cylinder that takes a 4.50 id by 5.00 od seal, is this the right size or am i missing something
Question by: Jean A on Jul 31, 2025, 6:30 PM
Fit comes down to those three dimensions. This U-seal is 4.50 inch ID, 5.00 inch OD, and 0.375 inch tall, with a 0.25 inch cross section. It is also a deep-type profile since the height is greater than the cross section.
Answer by: Customer Support on Aug 2, 2025, 1:32 PM
What pressure range can this handle?
Question by: Larry E on Jul 24, 2025, 1:58 PM
It's rated to handle pressures from 0 up to 6,000 PSI, so it should work in a pretty wide range of hydraulic applications.
Answer by: Customer Support on Jul 26, 2025, 8:12 AM
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