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HERCULES URETHANE BACKUP Ring 90A DUROMETER

Description & Features

The Hercules Urethane Backup Ring has a 90A durometer, providing reliable support and preventing O-ring extrusion in demanding hydraulic applications. This backup ring is manufactured by Hercules Sealing Products.

This HERCULES URETHANE BACKUP Ring 90A DUROMETER is designed to withstand high pressures and prevent seal failure, ensuring optimal performance and extended service life.

SKU: 575-032

Supplier Part Number (MPN): 575-032

Alternate Part Numbers: C1BT94, MI-01264285, MINO-00407X80512

Specifications

Alternate Part Numbers Alternate Part Number C1BT94, Alternate Part Number MI-01264285, Alternate Part Number MINO-00407X80512	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Supplier Part Number 575-032	Product Weight 0.01 lbs

Product Questions & Answers (1)

Question by: Dale P on Feb 11, 2026, 5:23 PM

Is this backup ring made from urethane?

Answer by: Customer Support on Feb 13, 2026, 9:40 AM

Yes, it is made from 90A durometer urethane.