Polyurethane U-Seal, 1.50 Inch OD, 1.06 Inch ID, 0.19 Inch Height

Cross Section
0.1875 in
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
H
0.1875 in
I.D.
1.0625 in
O.D.
1.5 in
Supplier Part Number
U18-1.12-SQB
Alternate Part Numbers
Alternate Part Number C1DN37
Product Weight
0.01 lbs

Product Questions & Answers

What kind of pressure range is this seal rated for, and will it hold up in a high-cycle hydraulic setup?
Question by: Lynn R on Aug 29, 2025, 5:19 PM
Rated from 0 to 6,000 PSI, this urethane U-seal handles the kind of pressure swings you'd see in most industrial hydraulic cylinders without breaking down. The beveled lip design helps it maintain consistent sealing contact through repeated cycling, so it's not just built for static use. As long as temps stay between -65°F and 220°F, it should hold up well in demanding duty.
Answer by: Customer Support on Aug 30, 2025, 7:52 PM
got a gland cut for a 1.0625 id and 1.50 od u-cup. is this the right one?
Question by: Rex W on Jul 3, 2025, 7:57 PM
Fit comes down to the seal’s measured sizes, and this one is 1.0625 inch ID, 1.50 inch OD, with a 0.1875 inch cross section and matching 0.1875 inch height in the SQB style. If your groove is set up for those dimensions, it matches.
Answer by: Customer Support on Jul 5, 2025, 6:30 AM

Similar Products

Model Number Cross Section I.D. O.D. H Price Buy Now
U12-0.62-25B 0.125 in 0.625 in 0.875 in 0.25 in
U12-1.00-25B 0.125 in 1 in 1.25 in 0.25 in
U12-1.25-SQB 0.125 in 1.25 in 1.5 in 0.125 in
U18-1.25-SQB 0.1875 in 1.25 in 1.625 in 0.1875 in
U18-1.75-37B 0.1875 in 1.75 in 2.125 in 0.375 in
U18-2.12-SQB 0.1875 in 2.125 in 2.5 in 0.1875 in
U18-2.50-31B 0.1875 in 2.5 in 2.875 in 0.3125 in
U25-1.25-37B 0.25 in 1.25 in 1.75 in 0.375 in
U25-1.50-37B 0.25 in 1.5 in 2 in 0.375 in
U25-2.00-37B 0.25 in 2 in 2.5 in 0.375 in
U25-2.50-37B 0.25 in 2.5 in 3 in 0.375 in
U25-3.00 0.25 in 3 in 3.5 in 0.25 in
U25-3.00-37B 0.25 in 3 in 3.5 in 0.375 in
U25-3.50-37B 0.25 in 3.5 in 4 in 0.375 in
U25-4.00-SQB 0.25 in 4 in 4.5 in 0.25 in
U25-4.50 0.25 in 4.5 in 5 in 0.25 in
U25-5.00 0.25 in 5 in 5.5 in 0.25 in
U12-0.18-25B 0.125 in 0.1875 in 0.438 in 0.25 in
U12-0.25-25B 0.125 in 0.25 in 0.5 in 0.25 in
U12-0.25-SQB 0.125 in 0.25 in 0.5 in 0.125 in
U12-0.31-25B 0.125 in 0.3125 in 0.563 in 0.25 in
U12-0.31-SQB 0.125 in 0.3125 in 0.563 in 0.125 in
U12-0.37 0.125 in 0.375 in 0.625 in 0.125 in
U12-0.50-25B 0.125 in 0.5 in 0.75 in 0.25 in
U12-0.50-SQB 0.125 in 0.5 in 0.75 in 0.125 in
U12-0.56 0.125 in 0.625 in 0.938 in 0.125 in
U12-0.62-SQB 0.125 in 0.625 in 0.875 in 0.125 in
U12-0.68 0.125 in 0.6875 in 0.938 in 0.125 in
U12-0.75-18B 0.125 in 0.75 in 1 in 0.1875 in
U12-0.75-25B 0.125 in 0.75 in 1 in 0.25 in
U12-0.75-SQB 0.125 in 0.75 in 1 in 0.125 in
U12-0.81 0.125 in 0.8125 in 1.063 in 0.125 in
U12-0.87-25B 0.125 in 0.875 in 1.125 in 0.25 in
U12-0.87-SQB 0.125 in 0.875 in 1.125 in 0.125 in
U12-1.00-18B 0.125 in 1 in 1.25 in 0.1875 in
U12-1.00-SQB 0.125 in 1 in 1.25 in 0.125 in
U12-1.06-SQB 0.125 in 1.0625 in 1.313 in 0.125 in
U12-1.12-25B 0.125 in 1.0625 in 1.375 in 0.25 in
U12-1.12-SQB 0.125 in 1.0625 in 1.375 in 0.125 in
U12-1.18 0.125 in 0.188 in 1.438 in 0.125 in
U12-1.18-18B 0.125 in 0.188 in 1.438 in 0.1875 in
U12-1.18-25B 0.125 in 0.188 in 1.438 in 0.25 in
U12-1.25-18B 0.125 in 1.25 in 1.5 in 0.1875 in
U12-1.25-25B 0.125 in 1.25 in 1.5 in 0.25 in
U12-1.37-25B 0.125 in 1.375 in 1.625 in 0.25 in
U12-1.37-SQB 0.125 in 1.375 in 1.625 in 0.125 in
U12-1.50-25B 0.125 in 1.5 in 1.75 in 0.25 in
U12-1.50-SQB 0.125 in 1.5 in 1.75 in 0.125 in
U12-1.62-SQB 0.125 in 1.625 in 1.875 in 0.125 in
U12-1.75-SQB 0.125 in 1.75 in 2 in 0.125 in
U12-2.00 0.125 in 2 in 2.25 in 0.125 in
U12-2.25 0.125 in 2.25 in 2.5 in 0.125 in
U12-2.75 0.125 in 2.75 in 3 in 0.125 in
U15-1.18 0.1563 in 0.188 in 1.5 in 0.1563 in
U15-1.25 0.1563 in 1.25 in 1.563 in 0.1563 in
U15-1.37 0.1563 in 1.375 in 1.688 in 0.1563 in
U18-0.50 0.1875 in 0.5 in 0.875 in 0.1875 in
U18-0.62-31B 0.1875 in 0.625 in 1 in 0.3125 in
U18-0.62-SQB 0.1875 in 0.625 in 1 in 0.1875 in
U18-0.75-31B 0.1875 in 0.75 in 1.125 in 0.3125 in
U18-0.75-SQB 0.1875 in 0.75 in 1.125 in 0.1875 in
U18-0.87-31B 0.1875 in 0.875 in 1.25 in 0.3125 in
U18-0.87-SQB 0.1875 in 0.875 in 1.25 in 0.1875 in
U18-1.00-25B 0.1875 in 1 in 1.375 in 0.25 in
U18-1.00-31B 0.1875 in 1 in 1.375 in 0.3125 in
U18-1.00-37B 0.1875 in 1 in 1.375 in 0.375 in
U18-1.00-SQB 0.1875 in 1 in 1.375 in 0.1875 in
U18-1.12-25B 0.1875 in 1.0625 in 1.5 in 0.25 in
U18-1.12-31B 0.1875 in 1.0625 in 1.5 in 0.3125 in
U18-1.12-SQB 0.1875 in 1.0625 in 1.5 in 0.1875 in
U18-1.18 0.1875 in 0.188 in 1.563 in 0.1875 in
U18-1.25-25B 0.1875 in 1.25 in 1.625 in 0.25 in
U18-1.25-31B 0.1875 in 1.25 in 1.625 in 0.3125 in
U18-1.25-37B 0.1875 in 1.25 in 1.625 in 0.375 in
U18-1.37-25B 0.1875 in 1.375 in 1.75 in 0.25 in
U18-1.37-31B 0.1875 in 1.375 in 1.75 in 0.3125 in
U18-1.37-37B 0.1875 in 1.375 in 1.75 in 0.375 in
U18-1.37-SQB 0.1875 in 1.375 in 1.75 in 0.1875 in
U18-1.50-25B 0.1875 in 1.5 in 1.875 in 0.25 in
U18-1.50-31B 0.1875 in 1.5 in 1.875 in 0.3125 in
U18-1.50-37B 0.1875 in 1.5 in 1.875 in 0.375 in
U18-1.50-SQB 0.1875 in 1.5 in 1.875 in 0.1875 in
U18-1.62 0.1875 in 1.625 in 2 in 0.1875 in
U18-1.62-25B 0.1875 in 1.625 in 2 in 0.25 in
U18-1.62-31B 0.1875 in 1.625 in 2 in 0.3125 in
U18-1.62-37B 0.1875 in 1.625 in 2 in 0.375 in
U18-1.62-SQB 0.1875 in 1.625 in 2 in 0.1875 in
U18-1.75-25B 0.1875 in 1.75 in 2.125 in 0.25 in
U18-1.75-31B 0.1875 in 1.75 in 2.125 in 0.3125 in
U18-1.75-SQB 0.1875 in 1.75 in 2.125 in 0.1875 in
U18-1.87-37B 0.1875 in 1.875 in 2.25 in 0.375 in
U18-1.87-SQB 0.1875 in 1.875 in 2.25 in 0.1875 in
U18-2.00-31B 0.1875 in 2 in 2.375 in 0.3125 in
U18-2.00-37B 0.1875 in 2 in 2.375 in 0.375 in
U18-2.00-SQB 0.1875 in 2 in 2.375 in 0.1875 in
U18-2.12-25B 0.1875 in 2.125 in 2.5 in 0.25 in
U18-2.25-37B 0.1875 in 2.25 in 2.625 in 0.375 in
U18-2.25-SQB 0.1875 in 2.25 in 2.625 in 0.1875 in
U18-2.37-SQB 0.1875 in 2.375 in 2.75 in 0.1875 in
U18-2.50-25B 0.1875 in 2.5 in 2.875 in 0.25 in
U18-2.50-37B 0.1875 in 2.5 in 2.875 in 0.375 in
U18-2.50-SQB 0.1875 in 2.5 in 2.875 in 0.1875 in
U18-2.62-37B 0.1875 in 2.625 in 3 in 0.375 in
U18-2.62-SQB 0.1875 in 2.625 in 3 in 0.1875 in
U18-2.75-37B 0.1875 in 2.75 in 3.125 in 0.375 in
U18-2.75-SQB 0.1875 in 2.75 in 3.125 in 0.1875 in
U18-2.87 0.1875 in 2.875 in 3.25 in 0.1875 in
U18-3.00 0.1875 in 3 in 3.375 in 0.1875 in
U18-3.00-37B 0.1875 in 3 in 3.375 in 0.375 in
U18-3.12-37B 0.1875 in 3.125 in 3.5 in 0.375 in
U18-3.12-SQB 0.1875 in 3.125 in 3.5 in 0.1875 in
U18-3.50-37B 0.1875 in 3.5 in 3.875 in 0.375 in
U18-3.62-37B 0.1875 in 3.625 in 4 in 0.375 in
U18-3.62-SQB 0.1875 in 3.625 in 4 in 0.1875 in
U18-4.00-37B 0.1875 in 4 in 4.375 in 0.375 in
U25-0.75 0.25 in 0.75 in 1.25 in 0.25 in
U25-0.93 0.25 in 0.8125 in 1.438 in 0.25 in
U25-1.00-37B 0.25 in 1 in 1.5 in 0.375 in
U25-1.00-SQB 0.25 in 1 in 1.5 in 0.25 in
U25-1.12 0.25 in 1.0625 in 1.625 in 0.25 in
U25-1.12-37B 0.25 in 1.0625 in 1.625 in 0.375 in
U25-1.18 0.25 in 0.188 in 1.688 in 0.25 in
U25-1.25-SQB 0.25 in 1.25 in 1.75 in 0.25 in
U25-1.37 0.25 in 1.375 in 1.875 in 0.25 in
U25-1.37-37B 0.25 in 1.375 in 1.875 in 0.375 in
U25-1.50-31B 0.25 in 1.5 in 2 in 0.3125 in
U25-1.50-SQB 0.25 in 1.5 in 2 in 0.25 in
U25-1.75 0.25 in 1.75 in 2.25 in 0.25 in
U25-1.75-37B 0.25 in 1.75 in 2.25 in 0.375 in
U25-1.87-37B 0.25 in 1.875 in 2.375 in 0.375 in
U25-2.00-31B 0.25 in 2 in 2.5 in 0.3125 in
U25-2.00-SQB 0.25 in 2 in 2.5 in 0.25 in
U25-2.12-37B 0.25 in 2.125 in 2.625 in 0.375 in
U25-2.25 0.25 in 2.25 in 2.75 in 0.25 in
U25-2.25-37B 0.25 in 2.25 in 2.75 in 0.375 in
U25-2.37-37B 0.25 in 2.375 in 2.875 in 0.375 in
U25-2.50-SQB 0.25 in 2.5 in 3 in 0.25 in
U25-2.62-37B 0.25 in 2.625 in 3.125 in 0.375 in
U25-2.75-37B 0.25 in 2.75 in 3.25 in 0.375 in
U25-2.75-SQB 0.25 in 2.75 in 3.25 in 0.25 in
U25-3.25-37B 0.25 in 3.25 in 3.75 in 0.375 in
U25-3.50 0.25 in 3.5 in 4 in 0.25 in
U25-3.50-SQB 0.25 in 3.5 in 4 in 0.25 in
U25-3.75-37B 0.25 in 3.75 in 4.25 in 0.375 in
U25-3.75-SQB 0.25 in 3.75 in 4.25 in 0.25 in
U25-4.00-37B 0.25 in 4 in 4.5 in 0.375 in
U25-4.00-50D 0.25 in 4 in 4.5 in 0.5 in
U25-4.00-56B 0.25 in 4 in 4.5 in 0.5625 in
U25-4.50-37B 0.25 in 4.5 in 5 in 0.375 in
U25-4.50-56B 0.25 in 4.5 in 5 in 0.5625 in
U25-4.50-62B 0.25 in 4.5 in 5 in 0.625 in
U25-5.00-37B 0.25 in 5 in 5.5 in 0.375 in
U25-5.50 0.25 in 5.5 in 6 in 0.25 in
U25-5.50-37B 0.25 in 5.5 in 6 in 0.375 in
U25-5.50-56B 0.25 in 5.5 in 6 in 0.5625 in
U31-1.00-50B 0.3125 in 1 in 1.625 in 0.5 in
U31-1.25 0.3125 in 1.25 in 1.875 in 0.3125 in
U31-1.25-37B 0.3125 in 1.25 in 1.875 in 0.375 in
U31-1.37-37B 0.3125 in 1.375 in 2 in 0.375 in
U31-1.37-SQB 0.3125 in 1.375 in 2 in 0.3125 in
U31-1.50 0.3125 in 1.5 in 2.125 in 0.3125 in
U31-1.75-37B 0.3125 in 1.75 in 2.375 in 0.375 in
U31-1.87 0.3125 in 1.875 in 2.5 in 0.3125 in
U31-2.00 0.3125 in 2 in 2.625 in 0.3125 in
U31-2.00-50B 0.3125 in 2 in 2.625 in 0.5 in
U31-2.25-50B 0.3125 in 2.25 in 2.875 in 0.5 in
U31-2.37 0.3125 in 2.375 in 3 in 0.3125 in
U31-2.50 0.3125 in 2.5 in 3.125 in 0.3125 in
U31-2.50-50B 0.3125 in 2.5 in 3.125 in 0.5 in
U31-2.75 0.3125 in 2.75 in 3.375 in 0.3125 in
U31-2.75-50B 0.3125 in 2.75 in 3.375 in 0.5 in
U31-2.87 0.3125 in 2.875 in 3.5 in 0.3125 in
U31-3.00-50B 0.3125 in 3 in 3.625 in 0.5 in
U31-3.37-50B 0.3125 in 3.375 in 4 in 0.5 in
U31-4.00 0.3125 in 4 in 4.625 in 0.3125 in
U31-4.00-56B 0.3125 in 4 in 4.625 in 0.5625 in
U31-4.37 0.3125 in 4.375 in 5 in 0.3125 in
U31-4.50 0.3125 in 4.5 in 5.125 in 0.3125 in
U37-1.25 0.375 in 1.25 in 2 in 0.375 in
U37-1.75 0.375 in 1.75 in 2.5 in 0.375 in
U37-2.50-50B 0.375 in 2.5 in 3.25 in 0.5 in
U37-2.75 0.375 in 2.75 in 3.5 in 0.375 in
U37-3.25-50B 0.375 in 3.25 in 4 in 0.5 in
U37-3.50 0.375 in 3.5 in 4.25 in 0.375 in
U37-3.75-50D 0.375 in 3.75 in 4.5 in 0.5 in
U37-4.00-62B 0.375 in 4 in 4.75 in 0.625 in
U37-4.25-50D 0.375 in 4.25 in 5 in 0.5 in
U37-4.25-62B 0.375 in 4.25 in 5 in 0.625 in
U37-4.25-SQB 0.375 in 4.25 in 5 in 0.375 in
U37-4.50-62B 0.375 in 4.5 in 5.25 in 0.625 in
U37-5.00-62B 0.375 in 5 in 5.75 in 0.625 in
U37-5.25 0.375 in 5.25 in 6 in 0.375 in
U37-5.25-50D 0.375 in 5.25 in 6 in 0.5 in
U37-6.25-50D 0.375 in 6.25 in 7 in 0.5 in
U50-2.00-SQB 0.5 in 2 in 3 in 0.5 in
U50-2.50 0.5 in 2.5 in 3.5 in 0.5 in