Smith & Wesson Center Pin J Frame X Frame Models 340 340PD 360 360PD 500 - 229420000

Smith & Wesson J Frame and X Frame Cylinder Center Pin - Part #229420000

Factory new OEM cylinder center pin designed for specific J Frame and X Frame models. Critical component that secures the cylinder to the crane assembly, ensuring proper alignment and smooth swing-out operation.

Compatible J Frame Models:

• Model 340 (.357 Magnum) - Airlite Centennial, scandium alloy
• Model 340PD (.357 Magnum) - Airlite Centennial PD, scandium alloy
• Model 360 (.357 Magnum) - Airlite Chiefs Special, scandium alloy
• Model 360PD (.357 Magnum) - Airlite Chiefs Special PD, scandium alloy

Compatible X Frame Model:

• Model 500 (.500 S&W Magnum) - 2003-present (largest production revolver)

Multi-Frame Compatibility:

This center pin is uniquely designed to fit both J Frame lightweight scandium models (340, 340PD, 360, 360PD) and the massive X Frame Model 500. This cross-compatibility is due to similar cylinder pin designs across these specific models, despite the dramatic size difference between the smallest and largest Smith & Wesson revolvers.

Caliber Compatibility:

J Frame: .357 Magnum

X Frame: .500 S&W Magnum

Key Features:

• Factory new OEM component - authentic Smith & Wesson quality
• Precision machined for proper cylinder alignment
• Essential for safe cylinder swing-out and lockup
• Direct replacement part - fits specific J and X Frame models listed above
• Ensures smooth cylinder operation

Function:

The center pin is a critical component that secures the cylinder to the crane (yoke) assembly. It ensures proper cylinder alignment, smooth rotation, and reliable lockup. Replace if worn, damaged, or if experiencing cylinder timing or alignment issues.

Installation:

Gunsmith installation recommended. Requires disassembly of cylinder crane mechanism and proper fitting to ensure correct function.

Need Help Identifying Your Model?

Swing out the cylinder and check behind the yoke on the frame for a model number. Model numbers began in 1957-58. Contact us with your serial number and we can help identify the correct parts.

We specialize in used, new, and new old stock Smith & Wesson double action revolver parts. Contact us for all your S&W part needs!