U-Cup Seal

U-Cup Seal

The MPU-35X45X7 MPU Piston U-Seal is a high-performance urethane piston seal engineered for demanding hydraulic applications. Molded from premium-quality urethane and designed specifically for piston use, this seal delivers dependable sealing performance up to 5,000 PSI while maintaining flexibility across a broad temperature range. Compact, durable, and built for motion, it’s a reliable alternative to NOK seals when consistent hydraulic performance matters.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: MPU-35X45X7
• Manufacturer Cross References: MA28-35X45X7, MPUC-045X035X07.0, ODI 35 45 7, ODI 45 35 7, OSI 35 45 7, OSI 45 35 7, P045035070PB
• Seal Type: MPU Piston U-Seal
• Material: Urethane
• Nominal ID (A): 35 mm
• Nominal OD (B): 45 mm
• Nominal Height (C): 7 mm
• Groove Diameter (H): 35.00 mm
• Groove Width (D): 8.00 mm
• Bore Diameter: 45.00 mm
• Temperature Range: -22°F to +212°F
• Pressure Range: 0 to 5,000 PSI
• Maximum Speed: 3 ft/sec
• Weight: 0.016 lbs
• Part Number Format: (Prefix)-(ID) x (OD) x (H)
• Application: Designed specifically for piston sealing applications
• Alternative To: NOK equivalent

Ideal For

• Hydraulic cylinders requiring durable piston sealing
• Applications operating up to 5,000 PSI
• Equipment exposed to variable temperatures
• Replacement needs where a urethane U-seal alternative to NOK is specified