Parker ERHD-100 External Retaining Ring 5/8 in Tube Od

Product Description

The PARKER ERHD-100 is a carbon steel external retaining ring designed for hose crimping applications. It fits tubing with a 5/8-inch outside diameter and is used to secure hose assemblies during and after the crimping process. This type of retaining ring provides a positive mechanical stop that keeps crimped hose fittings properly seated under pressure and vibration. Hydraulic technicians and fluid power specialists install these components when building or repairing high-pressure hose assemblies in industrial, mobile, and commercial fluid systems.

This external retaining ring is suited for use in hose fabrication shops, maintenance facilities, and field repair operations where crimped hose assemblies are built to specification. It is paired with compatible Parker hose fittings and crimping equipment. The carbon steel construction makes it appropriate for standard hydraulic and fluid conveyance applications where corrosion resistance is not a primary requirement. Proper fit to the 5/8-inch tube OD ensures consistent crimp geometry and assembly integrity.

Key Features

• Carbon steel construction provides strength and durability in hose crimping assemblies
• Designed for 5/8-inch tube outside diameter hose fittings
• External retaining ring style seats securely on the fitting exterior after crimping
• Sold individually, allowing single-unit replacement or small-quantity builds

Compatibility

Designed as an OEM-style component for use with Parker hose crimping fittings requiring an external retaining ring on 5/8-inch outside diameter tubing.

Installation Notes

Installation is performed by qualified hydraulic technicians or fluid power specialists using appropriate crimping equipment calibrated for the fitting and hose combination. De-pressurize and isolate the hydraulic circuit fully before disassembling any hose end or fitting. Inspect the retaining ring seat and fitting body for damage before assembly. Follow the hose and fitting manufacturer's crimping specifications for proper die selection and crimp dimensions.