U-Seal, 3-1/2x4x3/8

U-Seal, 3-1/2x4x3/8

The DSU25-3.50-37 U-Seal is a 92A urethane sealing solution built for dependable performance in hydraulic applications where you need strong sealing under pressure and temperature swings. With a 3-1/2" nominal ID, 4" nominal OD, and 3/8" height, it’s designed to fit properly in its housing and keep things sealed up tight—because hydraulic leaks always seem to show up right when you’re already behind schedule.

Country of Origin
Varies by production batch

Key Features / Specifications

• Product / Part Number: DSU25-3.50-37
• Product Type: U-Seal
• Material: 92A Urethane
• Nominal ID (A): 3-1/2"
• Nominal OD (B): 4"
• Nominal Height (C): 3/8"
• Cross Section: 1/4
• Temperature Range: -40°F to +230°F
• Pressure Range: 0 to 4,000 PSI
• Max Speed: 3 ft/sec
• Groove Diameter (H): 3.500
• Groove Width (D): 0.406
• Rod Size: 3.500
• Bore Size: 4.000
• Housing Diameter (G): 4.000
• Piston Diameter (I): 3.999
• Throat Diameter (F): 3.501
• Weight: 0.033500 lbs

Ideal For

• Hydraulic and mechanical systems needing a urethane U-seal rated up to 4,000 PSI
• Applications exposed to wide temperature swings (-40°F to +230°F)
• Installations where matching groove dimensions and rod/bore sizes is critical
• Anyone trying to keep fluid where it belongs—inside the system, not decorating the floor