Enhance the reliability and efficiency of your hydraulic systems with the Hercules RCW-90URE-1-1/4X1-3/4X5/16 seal. Manufactured by Hercules Sealing Products, this durable component ensures optimal performance in demanding industrial environments. Designed to fit precise specifications, it offers a robust sealing solution that minimizes leakage and maximizes operational longevity.
This product is crafted from high-quality materials, featuring a 1-1/4-inch inside diameter, 1-3/4-inch outside diameter, and a 5/16-inch cross-section. These dimensions ensure compatibility with a wide range of hydraulic applications, providing versatility and adaptability in maintenance and repair use.
Hercules Sealing Products are known for their commitment to quality and reliability, ensuring that every seal meets the highest standards of performance. The RCW-90URE model is a testament to this reputation, providing users with a dependable sealing solution for various industrial needs.
SKU: MCU-1250-D
Supplier Part Number (MPN): MCU-1250-D
Alternate Part Numbers: C1ML42, MCU-1250-G, MI-01810831, MINO-00407Q30603
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Specifications
Alternate Part Numbers
Alternate Part NumberC1ML42, Alternate Part Number MCU-1250-G, Alternate Part Number MI-01810831, Alternate Part Number MINO-00407Q30603
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
Supplier Part Number
MCU-1250-D
Product Weight
0.03 lbs
Product Questions & Answers (2)
Question by: Earl J on Mar 15, 2026, 9:54 PM
got a groove that takes a 1-1/4 ID, 1-3/4 OD seal with a 5/16 cross section. is this the right one for that?
Answer by: Customer Support on Mar 17, 2026, 6:57 AM
Fit comes down to those three dimensions, and this RCW-90URE seal is 1-1/4 inch inside diameter, 1-3/4 inch outside diameter, with a 5/16 inch cross section, so it matches that size callout.
Question by: Terry F on Jul 10, 2025, 7:24 PM
Got a cylinder that calls for a 1-1/4 bore seal with a 1-3/4 OD and 5/16 cross-section. That match up with what this Hercules seal is?
Answer by: Customer Support on Jul 12, 2025, 8:14 AM
those numbers line up exactly. The RCW-90URE runs a 1-1/4 inch inside diameter, 1-3/4 inch outside diameter, and a 5/16 inch cross-section, so if your cylinder spec matches that, you're looking at the right part. Hercules also lists a handful of alternate part numbers for this one including C1ML42, MCU-1250-G, MI-01810831, and MINO-00407Q30603, which can help if you're cross-referencing an old part tag or a competitor number.
