CSM Urethane Piston Seal | Two-Piece Polyurethane Hydraulic Piston Seal | HydraPak Seals, Inc
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CSM-338

CSM Urethane 2pc Piston Seal, 3.500 X 3.125 X 0.265

Part #:
CSM-338
Min. Order Qty: 1

Brand: HPSI

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HPSI

The CSM Urethane Piston Seal is a two-piece piston seal assembly molded from 93A polyurethane with a 70A energizer. It fits the same groove dimensions as standard O-rings or T-seals and can accommodate one or two back-up rings for wider grooves. Engineered for extrusion resistance, the CSM seal also resists rolling and twisting. Its simple two-step snap-in installation requires no resizing before insertion into the bore, providing a straightforward installation process. The -WB suffix designates the wide-base version.

Bore Diameter      :      3.500 in
Groove Diameter      :      3.125 in
Groove Width      :      0.280 in
Material      :      Urethane/Nitrile
Part Number      :      (Prefix)-(Size)
Pressure Range      :      0 TO 5,000 PSI
Temperature Range      :      -65° to 220°F
  • 93A polyurethane construction provides durable sealing performance
  • 70A energizer provides reliable sealing force
  • Two-piece construction combines the polyurethane seal and energizer
  • Fits groove dimensions used with standard O-rings and T-seals
  • Accommodates one or two back-up rings for wider grooves
  • Designed for extrusion resistance
  • Resists rolling and twisting during operation
  • Two-step snap-in installation simplifies assembly
  • Requires no resizing before insertion into the bore
  • -WB suffix designates the wide-base configuration

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