Skip to the beginning of the images gallery

ORing 5-1/4 ID X 5-3/8OD

Description & Features

Ensure reliable sealing with the Hercules Sealing Products O-Ring, featuring a precise internal diameter of 5-1/4 inches and an outer diameter of 5-3/8 inches. This high-quality O-Ring is designed to provide excellent sealing performance in demanding industrial applications. Crafted by Hercules Sealing Products, a trusted name in sealing solutions, it is suitable for various hydraulic systems where dependable sealing is crucial.

Constructed to meet rigorous standards, this O-Ring is ideal for use in environments where precision and durability are paramount. The dimensions ensure a snug fit, reducing the risk of leaks and maintaining system efficiency. It's a vital component for equipment where maintaining pressure integrity is essential for optimal performance.

SKU: A-050

Supplier Part Number (MPN): 568-050

Alternate Part Numbers: C1CD56

Specifications

Alternate Part Numbers Alternate Part Number C1CD56	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Supplier Part Number 568-050	Product Weight 0.01 lbs

Product Questions & Answers (2)

Question by: Freddie B on Mar 31, 2026, 12:09 PM

Will this O-ring work in a standard hydraulic application, or is it for something specific?

Answer by: Customer Support on Apr 2, 2026, 6:29 AM

This Hercules O-ring is designed for a range of hydraulic systems where a dependable seal is needed to maintain pressure and prevent leaks. Its dimensions are crafted to ensure a snug fit in appropriate applications.

Question by: Daryl W on Sep 1, 2025, 8:50 PM

got a groove that measures 5-1/4 on the inside, is this the right o-ring size or am i readin it wrong

Answer by: Customer Support on Sep 3, 2025, 10:19 AM

For this part, the key fit numbers are a 5-1/4 inch inside diameter and a 5-3/8 inch outside diameter. If your old seal or the groove calls for a 5-1/4 inch ID O-ring, that matches what this one is sized for.