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Polyurethane U-Seal, 0.50 Inch OD, 0.25 Inch ID, 0.13 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U12-0.25-SQB
Alternate Part Numbers
Alternate Part Number
C1DM72 ,
Alternate Part Number
MI-01198963 ,
Alternate Part Number
MINO-00407X60458
got a cylinder that takes a 1/4 inch rod seal, is this the one with the 1/2 inch outside?
Question by: Wes A on Jan 18, 2026, 2:23 PM
Fit comes down to the measured sizes. This U-seal is 0.25 inch ID and 0.50 inch OD, with a 0.125 inch cross section and about 0.13 inch overall height. If your groove and hardware are set up for those dimensions, it matches.
Answer by: Customer Support on Jan 19, 2026, 3:23 PM
What kind of pressure can this seal actually hold up to? Got a cylinder running pretty hard and want to make sure it won't give out on me.
Question by: Floyd T on Nov 11, 2025, 3:17 PM
Rated for 0 to 6,000 PSI, so it's built for serious hydraulic work. The urethane construction holds up well under sustained pressure, and the beveled lip design helps it maintain a clean seal rather than letting fluid sneak past. For a hard-working cylinder, that pressure range gives you plenty of headroom.
Answer by: Customer Support on Nov 12, 2025, 8:24 PM
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