Skip to the beginning of the images gallery

Urethane Backup Ring Kit. HERCULES HYDRAULICS KIT

Description & Features

Enhance the reliability of hydraulic systems with the Urethane Backup Ring Kit from Hercules Sealing Products. Designed for durability, this kit includes a comprehensive assortment of urethane backup rings, essential for preventing extrusion in high-pressure applications. The high-grade urethane material ensures excellent resistance to wear and tear, making it ideal for demanding industrial environments.

Part of the Assortment Kits & Tools line, this kit is a must-have for maintenance and repair tasks, offering versatility across various hydraulic systems. Its compatibility with a wide range of seals and applications makes it a valuable addition to any toolkit, ensuring consistent performance and longevity of your hydraulic components.

SKU: 575-KIT

Supplier Part Number (MPN): 575 KIT

Alternate Part Numbers: C1BV86, MI-03014316, MINO-00407X31662

Specifications

Alternate Part Numbers Alternate Part Number C1BV86, Alternate Part Number MI-03014316, Alternate Part Number MINO-00407X31662	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Supplier Part Number 575 KIT	Product Weight 2.00 lbs

Product Questions & Answers (2)

Question by: Lee J on Dec 30, 2025, 3:14 PM

what exactly is a backup ring kit used for in a hydraulic setup?

Answer by: Customer Support on Jan 1, 2026, 6:27 AM

Backup rings go in alongside primary seals to keep them from extruding into the gap between mating components under pressure. Without them, a soft seal can get pushed out of its groove over time, especially in higher-pressure systems, and you end up with leaks a lot sooner than you should. The urethane material in this kit holds up well against that kind of mechanical stress compared to softer elastomers.

Question by: Kurt S on May 5, 2025, 1:00 PM

So, this is just a kit of urethane backup rings, right? Just wanna make sure I'm lookin' at the right thing.

Answer by: Customer Support on May 7, 2025, 10:52 AM

Functionally, yes, this Hercules Hydraulics kit provides you with urethane backup rings. It's catalog number C1BV86.