Irwin IR3557121C Standard C-ring 2.25 in Oal

Product Description

The IRWIN IR3557121C is a standard C-ring retaining fastener measuring 2.25 inches overall length (OAL). C-rings are used to secure components in assemblies by snapping into grooves or channels, providing a reliable mechanical stop or retention point. This single-piece fastener is sized for applications where a 2.25-inch OAL C-ring is specified. Plumbers, HVAC technicians, electricians, and general tradespeople keep C-rings on hand for equipment assembly, shaft retention, and component securing tasks across a wide range of mechanical systems.

The IR3557121C is suited for use in residential and light commercial mechanical assemblies where standard C-ring fasteners are required. It is sold individually, making it a practical choice when only a single replacement or assembly fastener is needed. Typical applications include equipment repair, component reassembly, and new installation work in HVAC, plumbing, and general mechanical trades.

Key Features

• Standard C-ring design for reliable component retention in grooved channels
• 2.25-inch overall length (OAL) for precise fitment in specified applications
• Single-piece construction for straightforward installation
• Sold individually — order the exact quantity needed

Compatibility

Designed as an OEM-style replacement or assembly fastener for mechanical systems requiring a standard 2.25-inch OAL C-ring retainer.

Installation Notes

C-rings are typically installed and removed using snap-ring or C-ring pliers to avoid distortion of the fastener. Always de-energize equipment and relieve any system pressure before disassembling components that use C-ring retainers. Inspect the retaining groove for wear or damage before installing a new C-ring to ensure secure seating.

Technical Specifications

• Type: Standard C-Ring
• Overall Length (OAL): 2.25 inches
• Sold As: Each (1 piece)
• UPC: 673765013853

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR3557121C