Smith & Wesson J Frame Center Pin New Old Stock Models 31 32 34 63 631 632 - 079540000

Smith & Wesson J Frame Cylinder Center Pin - Part #079540000

New Old Stock (NOS) - Factory original cylinder center pin designed for specific J Frame models. Critical component that secures the cylinder to the crane assembly, ensuring proper alignment and smooth swing-out operation.

⚠️ Discontinued Part - Limited Availability

This is a rare New Old Stock factory part that has been discontinued. Once current inventory is sold, this part will no longer be available.

Compatible J Frame Models:

• Model 31 (.32 S&W Long) - 1960-1992
• Model 32 (.38 S&W) - 1960-1974
• Model 34 (.22 LR rimfire) - 1960-1991 (Kit Gun)
• Model 63-3 (.22 LR rimfire, stainless) - 1977-1998 (Kit Gun, dash 3 variant)
• Model 631 (.32 H&R Magnum, stainless) - 1990-1992
• Model 632 (.32 H&R Magnum, stainless, Centennial) - 1991-1992

Caliber Compatibility:

.22 LR (rimfire), .32 S&W Long, .32 H&R Magnum, .38 S&W

Key Features:

• New Old Stock (NOS) condition - never used, original factory part
• Genuine Smith & Wesson factory component
• Discontinued part - rare find for vintage J Frame models
• Manufactured to exact OEM specifications and tolerances
• Precision machined for proper cylinder alignment
• Essential for safe cylinder swing-out and lockup

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. Some fitting may be required by a qualified gunsmith.

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. If there is no model number, your revolver is from the Pre-Model era (pre-1957). 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!