Smith & Wesson Mainspring K, L, N, X Frame All Models - 050470000
$13.99
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Smith & Wesson Mainspring K, L, N, X Frame All Models - 050470000
$13.99
Smith & Wesson Factory Mainspring (Hammer Spring) – Part #050470000
Factory original OEM mainspring (hammer spring) for Smith & Wesson double-action revolvers. Fits all K, L, N, and X Frame models. This is the spring that powers hammer operation — a worn or weakened mainspring leads to light primer strikes, misfires, and inconsistent trigger pull. Replacing it with a genuine S&W factory spring restores reliable ignition and smooth double-action performance.
- Part Number: 050470000
- Condition: Factory new OEM
- Material: Spring steel
- Function: Powers hammer / ensures reliable primer strikes
- Fits: K, L, N, X Frame – all models
Model Compatibility Chart
| Frame | Compatible Models |
|---|---|
| K Frame | 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 48, 53, 64, 65, 66, 67, 617, 648, K22 |
| L Frame | 581, 586, 619, 620, 681, 686, 696 |
| N Frame | 27, 28, 29, 57, 58, 325, 327, 329, 610, 625, 627, 629, 657 |
| X Frame | 460, 500 |
This is a universal multi-frame mainspring. If you are unsure of your frame size, check the model number on your revolver's frame or barrel.