H O-Ring Loaded U-Seal | Polyurethane Hydraulic U-Seal | HydraPak Seals, Inc
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H31-2.87

H O-Ring Loaded Urethane U-Seal, 2-7/8 X 3-1/2 X 5/16, Standard Style

Part #:
H31-2.87
Min. Order Qty: 1

Brand: HPSI

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HPSI

The H O-Ring Loaded U-Seal is molded from tough, abrasion-resistant polyurethane for reliable hydraulic sealing in dynamic applications. An integrated O-ring expander maintains consistent sealing force across the operating pressure range while enhancing low-pressure sealing performance to help prevent leakage.


The Standard profile features equal seal height and cross section, creating a square seal geometry.It utilizes the Type D sealing lip, making it the standard choice for general-purpose hydraulic sealing applications.


Typical Part Number: H25-2.50

Cross Section      :      5/16 in
Height      :      5/16 in
Inside Diameter      :      2-7/8 in
Lip Style      :      Standard
Material      :      Urethane/Nitrile
Outside Diameter      :      3-1/2 in
Part Number      :      (Prefix)(C/S)-(ID)-(H)
Pressure Range      :      0 TO 5,000 PSI
Temperature Range      :      -65° to 220°F
  • Square profile provides balanced sealing performance
  • Type D sealing lip delivers reliable hydraulic sealing
  • O-ring expander maintains consistent sealing force across the pressure range
  • Enhances low-pressure sealing to help prevent leakage ("weeping")
  • Abrasion-resistant polyurethane offers long service life

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