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Polyurethane U-Seal, 1.75 Inch OD, 1.38 Inch ID, 0.25 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U18-1.37-25B
Alternate Part Numbers
Alternate Part Number
C1DN43 ,
Alternate Part Number
DSU18-1.37-25B ,
Alternate Part Number
MI-01810337 ,
Alternate Part Number
MINO-00407Q30111
what's the pressure rating on this seal? got a cylinder running pretty hard and need something that ain't gonna give out on me
Question by: Brenda D on Dec 1, 2025, 6:03 AM
Rated up to 6,000 PSI, so it holds up well under heavy hydraulic load. The urethane construction handles demanding service conditions without breaking down, and the beveled lip design helps it maintain that seal during reciprocating motion rather than just sitting static. For a hard-working cylinder, that pressure ceiling gives you solid headroom.
Answer by: Customer Support on Dec 2, 2025, 12:33 PM
What kind of pressure can this seal handle?
Question by: Floyd G on Apr 2, 2026, 2:35 PM
This U-seal is rated to handle pressures up to 6,000 PSI, so it should be good for most hydraulic applications.
Answer by: Customer Support on Apr 4, 2026, 7:49 AM
trying to match up a u-seal i pulled out, are these the right dimensions for it
Question by: Dwayne W on Nov 22, 2025, 7:02 PM
You are looking at a 1.75 inch OD, 1.375 inch ID, and 0.25 inch height. It is a standard type U-seal where the height and cross section are equal, and the cross section is 0.1875 inch.
Answer by: Customer Support on Nov 24, 2025, 6:14 AM
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