Notice: 10% Tariff in Effect May 19th

PSU-5.25X4.75X.562

PSU Urethane Piston Seal, 5.250 X 4.750 X 0.562

Part #:
PSU-5.25X4.75X.562
Min. Order Qty: 1

Brand: HPSI

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HPSI

The PSU piston seal, also known as a uni-ring, is a one-piece, double-acting laminated seal made from cast polyurethane. Its tough, molybdenum disulfide-impregnated outer layer reduces friction and offers excellent abrasion resistance, while the softer inner layer serves as a static seal and energizes the outer diameter for full bore contact. This versatile seal can replace existing uni-rings or other seals with matching dimensions, including O-rings, O-rings with backups, T-seals, and U-seals.

Bore Diameter      :      5.250 in
Groove Diameter      :      4.750 in
Groove Width      :      0.591 in
Material      :      Double Compound Urethane
Part Number      :      (Prefix)-(OD)X(ID)X(H)
Pressure Range      :      0 TO 5,000 PSI
Temperature Range      :      -65° to 220°F
  • PSU style
  • Laminated 1pc piston seal
  • Double acting
  • Cast urethane/molybdenum disulfide