Graco 551184 Ring, Retaining Inside 1.75"

Internal Retaining Ring for Secure Component Retention

Compatible Machines

• Graco MD2 Dispense Valve assemblies
• Graco 2K Ultra-Lite Air-Operated Two-Component Dispense Valve systems
• Compatible with equipment that specifies OEM part 551184 in the parts manual.
• Verify compatibility using your machine's exploded parts diagram before ordering.

Product Overview

The Graco 551184 Ring, Retaining Inside 1.75" is a genuine OEM internal retaining ring designed to securely hold components within a 1.75-inch internal bore. Installed in a machined groove, it prevents axial movement of shafts, bearings, or valve components, helping maintain proper assembly alignment and reliable equipment operation.

Manufactured to Graco's original specifications, this retaining ring provides a secure fit, dependable retention, and long service life in demanding industrial dispensing applications. It is commonly used in compatible MD2 Dispense Valve and 2K Ultra-Lite Air-Operated Two-Component Dispense Valve assemblies where precise component retention is essential.

Key Features

• Genuine Graco OEM internal retaining ring.
• Designed for a 1.75-inch internal bore.
• Prevents internal components from shifting during operation.
• Supports accurate assembly alignment and equipment reliability.
• Ideal for maintenance and OEM replacement applications.

Why Replace the Retaining Ring?

Retaining rings can lose tension or become damaged after repeated service or disassembly. Replacing a worn ring with the correct OEM part helps maintain secure component positioning, minimizes unexpected downtime, and restores factory-level performance.

Frequently Asked Questions