Smith & Wesson Cylinder Center Pin Spring J K L N Frame Factory New OEM 074640000

Smith & Wesson Cylinder Center Pin Spring - Part #074640000

Factory new OEM cylinder center pin spring designed for J, K, L, and N Frame revolvers. This critical spring retains the cylinder center pin, ensuring proper cylinder operation and reliable lockup.

Frame Compatibility:

• J Frame - Small frame revolvers (1950s-present)
• K Frame - Medium frame revolvers (1899-present)
• L Frame - Large frame revolvers (1980-present)
• N Frame - Extra large frame revolvers (1907-present)

Compatible Models Include:

J Frame: 30, 31, 32, 33, 34, 35, 36, 37, 38, 42, 43, 49, 60, 63, 317, 331, 337, 340, 342, 351, 360, 442, 637, 638, 640, 642, 649, 651

K Frame: 10, 12, 13, 14, 15, 16, 17, 18, 19, 48, 53, 64, 65, 66, 67, 617, 648

L Frame: 581, 586, 619, 620, 681, 686, 696

N Frame: 24, 25, 27, 28, 29, 57, 58, 610, 624, 625, 627, 628, 629, 657

Caliber Compatibility:

.22 LR, .22 WMR, .32 H&R Magnum, .38 Special, .357 Magnum, .41 Rem Mag, .44 Special, .44 Rem Mag, .45 ACP, .45 Colt

Key Features:

• Factory new OEM component - authentic Smith & Wesson quality
• Universal fit for J, K, L, and N Frame models
• Precision spring steel construction for consistent retention
• Essential for proper cylinder swing-out and lockup
• Direct replacement part - minimal fitting required
• Ensures smooth cylinder operation

Important Notes:

NOT compatible with X Frame revolvers (460XVR, 500) or Z Frame revolvers - these require different springs. Replace worn springs to maintain proper cylinder retention and prevent operational issues. Essential for gunsmiths, armorers, and firearm enthusiasts maintaining their revolvers.

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!