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Polyurethane U-Seal, 0.50 Inch OD, 0.25 Inch ID, 0.25 Inch Height
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Supplier Part Number
U12-0.25-25B
Alternate Part Numbers
Alternate Part Number
C1DM71 ,
Alternate Part Number
MI-01198968 ,
Alternate Part Number
MINO-00407X60459
got a gland that measures 1/2 inch OD and 1/4 inch ID, is this u-seal the right size or am i reading it backwards
Question by: Bobby M on Apr 1, 2026, 12:11 PM
For sizing, the outer diameter is 0.50 inch and the inner diameter is 0.25 inch, with a 0.25 inch height and a 0.125 inch cross section. If your gland is set up for a seal with those same OD and ID dimensions, this one matches those measurements.
Answer by: Customer Support on Apr 3, 2026, 11:43 AM
Seal's rated up to 6,000 PSI, that hold true across the full temperature range or just at room temp?
Question by: Stan S on Aug 11, 2025, 7:04 PM
Pressure rating and temperature range are both listed as independent specs for this seal, so the 0 to 6,000 PSI rating applies across its operational range of -65°F to 220°F. Urethane holds up well under combined pressure and temperature stress, and the beveled lip design helps maintain film breaking even as conditions shift. For most hydraulic applications running within those boundaries, you shouldn't have trouble.
Answer by: Customer Support on Aug 13, 2025, 8:18 AM
What kinda pressure can this seal handle without poppin'?
Question by: Jerry P on Feb 15, 2026, 7:00 AM
It's rated to handle pressures from 0 up to 6,000 PSI, so it should hold up well in most high-pressure hydraulic systems.
Answer by: Customer Support on Feb 17, 2026, 6:54 AM
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