Piston Seal, 2.00X1.625X.265

PSM-326 is a PSM Piston Seal Assembly

The PSM-326 Piston Seal Assembly is a urethane piston seal with nitrile energizer designed for reliable hydraulic sealing in demanding applications. Molded from 93 Shore A polyurethane with a 70 Shore A nitrile energizer, this assembly fits the same groove dimensions as a standard O-ring/T-seal and offers excellent resistance to extrusion, rolling, and twisting. With an easy two-step snap-in installation and no need for resizing before insertion, it simplifies service while delivering performance up to 5,000 PSI—because seals should solve problems, not create installation headaches.

Country of Origin
Varies by production batch

Key Features / Specifications

• Part Number: PSM-326
• Alternate MFG Numbers: H775-326, PSP-326A, CSM-326, DAGI200162-280, 81-5411, 81-5410, 4304BP326A
• Product Type: PSM Piston Seal Assembly
• Material (Seal): 93A Polyurethane
• Energizer Material: 70A Nitrile
• Nominal Inside Diameter (A): 1-5/8" (1.625")
• Nominal Outside Diameter (B): 2.000"
• Nominal Height (C): 0.265"
• Groove Diameter (H): 1.625"
• Groove Width (D): 0.280"
• O-Ring Dash Size Equivalent: -326
• Bore Diameter: 2.000"
• Piston Diameter (I): 1.998" (for pistons without wear rings)
• Temperature Range: -40°F to +220°F
• Pressure Range: 0 to 5,000 PSI
• Maximum Speed: 3 ft/sec
• Weight: 0.014602 lb
• Back-Up Ring Compatibility: Style 575 (one or two may be used for wider grooves)

Ideal For

• Hydraulic piston applications requiring high-pressure sealing
• Systems operating up to 5,000 PSI
• Installations needing extrusion resistance and anti-rolling design
• Applications using standard O-ring / T-seal groove dimensions
• Maintenance situations where quick snap-in installation is preferred