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90A Durometer Urethane Back-Up Rings -014 Dash Size, Per Pack

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Description & Features

Crafted by Hercules Sealing Products, these urethane back-up rings are essential components for ensuring optimal sealing in hydraulic systems. Molded with a 90A durometer, these rings offer exceptional extrusion resistance, making them ideal for applications that demand durability and precision. The -014 dash size ensures compatibility with corresponding O-ring sizes, providing a reliable fit. Designed to withstand a temperature range from -65°F to 220°F, these rings are well-suited for various industrial environments.

Available in a pack of 10, these back-up rings are engineered to return quickly to their original size after stretching, facilitating easy installation. With the combination of robust material and precise engineering, they serve as a dependable choice for maintaining system integrity in demanding conditions.

SKU: 575-014

Supplier Part Number (MPN): 575-014

Alternate Part Numbers: C1BT76, MI-01811213, MINO-00407Q30982

Specifications

Brand
HERCULES® SEALING PRODUCTS
Dash Size
14
Durometer
95A
Inside Diameter
1/2 in
Material
Urethane
Series
575 Series
Suitable For Use With
Hydraulic and Pneumatic Cylinders
System of Measurement
Imperial

Product Questions & Answers (3)

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Question by: Brenda B on Aug 24, 2025, 5:38 PM
Will these urethane back-up rings hold up okay in a hydraulic system that sees some pretty hot oil temps now and then?
Answer by: Customer Support on Aug 25, 2025, 6:42 PM
Urethane models like this one are generally good to 220°F.
Question by: Connie C on Feb 15, 2026, 3:02 PM
these stretch for install and snap back to size -- how's that work out in practice when you're swapping seals on a tight bore?
Answer by: Customer Support on Feb 17, 2026, 6:07 AM
Urethane at 90A durometer has enough flex to stretch over an O-ring groove without tearing, and once it seats it pulls back to its molded dimensions pretty cleanly. That recovery is what keeps it snug against the bore wall so it can do its job blocking extrusion. Just make sure the O-ring size matches up, since these back-up rings are sized to correspond directly to standard O-ring dash sizes, and this one is a -014.
Question by: Shane T on Apr 11, 2025, 6:22 AM
got a -014 o-ring groove. is this back-up ring meant to match that dash size?
Answer by: Customer Support on Apr 12, 2025, 9:56 AM
The -014 dash size is intended to correspond to the same dash size O-ring, since these back-up ring sizes are matched to O-ring sizes.

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