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ST Style Urethane Wiper Ring, 2.50 Inch Rod Diameter, 3.00 Inch Wiper OD, 1/4 Inch Base Thickness

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Description & Features

Designed for optimal performance in industrial applications, the ST Style Urethane Wiper Ring effectively seals and protects hydraulic components. It fits a 2.50-inch rod diameter and has a 3.00-inch outer diameter, providing a robust barrier against contaminants. Constructed from durable urethane, this wiper ring operates efficiently across a wide temperature range of -65°F to 220°F, ensuring reliability in various environments. Its 1/4-inch base thickness offers excellent durability, making it ideal for demanding use.

Manufactured by Hercules Sealing Products, this wiper ring exemplifies quality and precision in design. It is particularly suitable for applications where maintaining hydraulic integrity is crucial. Whether used in heavy machinery or other industrial settings, the ST Style Urethane Wiper Ring delivers consistent performance and long-lasting service life.

SKU: ST-250

Supplier Part Number (MPN): ST-250

Alternate Part Numbers: C1DL40, MI-00967568, MINO-00407X20016

Specifications

Brand
HERCULES® SEALING PRODUCTS
Dimensions
1/4 in H
Durometer
90
Inside Diameter
2-1/2 in
Material
Urethane
Series
ST Series

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Product Questions & Answers (3)

Question by: Billy P on Jun 27, 2025, 8:09 PM
got a cylinder with a 2.5 inch rod, is this the right wiper size or am i missin something
Answer by: Customer Support on Jun 29, 2025, 10:28 AM
The key numbers are the rod diameter and the wiper outside diameter. This ST style wiper ring is sized for a 2.50 inch rod and has a 3.00 inch wiper OD, with a 1/4 inch base thickness.
Question by: Dale W on Nov 15, 2025, 6:54 AM
Got a 2.50 inch rod on a hydraulic cylinder and need a wiper, this the right size to grab?
Answer by: Customer Support on Nov 16, 2025, 5:45 PM
Yeah, that's your part. The wiper seats on a 2.50-inch rod diameter with a 3.00-inch outer diameter, so it should drop right into a standard ST style groove without any modification. The 1/4-inch base thickness is worth confirming against your bore depth before you button everything back up, but dimensionally you're looking at an exact match for that rod size.
Question by: Marvin C on Sep 30, 2025, 2:46 PM
What size rod does this wiper ring fit? Just wanna make sure it's gonna work for my setup.
Answer by: Customer Support on Oct 1, 2025, 8:42 PM
This ST Style Urethane Wiper Ring is made to fit a 2.50-inch rod diameter. The outside diameter of the wiper itself is 3.00 inches, and it's 1/4 inch thick.

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