Smith & Wesson K Frame Hand Assembly Factory New - 210640000

Smith & Wesson K Frame Hand Assembly - Factory New OEM Part 210640000

Genuine factory new Smith & Wesson hand assembly for K Frame revolvers. This precision-machined component is essential for proper cylinder rotation and timing, ensuring reliable operation and accurate shooting. The hand engages the cylinder ratchet to rotate the cylinder into proper alignment with each trigger pull.

Key Features:

• ✓ Genuine Smith & Wesson OEM part - not aftermarket
• ✓ Factory new condition
• ✓ Precision-machined to exact tolerances
• ✓ Direct replacement for worn or damaged hand assemblies
• ✓ Ensures proper cylinder rotation and timing
• ✓ Manufactured with same materials as original equipment
• ✓ Compatible with multiple K Frame models

Product Specifications:

• Part Number: 210640000
• Frame Compatibility: K Frame
• Condition: Factory New
• Function: Hand assembly for cylinder rotation
• Weight: 1 oz
• Manufacturer: Smith & Wesson

Compatible K Frame Models:

• Smith & Wesson Model 10 - .38 Special
• Smith & Wesson Model 12 - .38 Special
• Smith & Wesson Model 13 - .357 Magnum
• Smith & Wesson Model 14 - .38 Special
• Smith & Wesson Model 15 - .38 Special
• Smith & Wesson Model 16 - .32 H&R Magnum
• Smith & Wesson Model 17-6 - .22 LR
• Smith & Wesson Model 18 - .22 LR
• Smith & Wesson Model 19-6 - .357 Magnum
• Smith & Wesson Model 64-4 - .38 Special
• Smith & Wesson Model 65-5 - .357 Magnum
• Smith & Wesson Model 66-3 - .357 Magnum
• Smith & Wesson Model 67-2 - .38 Special
• Smith & Wesson Model 617 - .22 LR
• Smith & Wesson Model 647 - .17 HMR
• Smith & Wesson Model 648 - .22 Magnum

About the K Frame Hand Assembly

The hand assembly is one of the most critical timing components in a revolver. It engages the cylinder ratchet and rotates the cylinder into alignment with the barrel as the hammer is cocked. Proper hand function is essential for reliable operation, accurate shooting, and safe cylinder lockup. A worn or damaged hand can cause timing issues, cylinder drag, or failure to rotate properly.

When to Replace the Hand Assembly:

• Cylinder fails to rotate properly
• Cylinder timing is off (misalignment with barrel)
• Visible wear on hand engagement surface
• Cylinder drag or binding during rotation
• Light primer strikes due to timing issues
• As part of complete timing and lockup rebuild

Why Choose Genuine OEM Parts?

Factory replacement hand assemblies are manufactured to the exact same specifications, tolerances, and materials as the original components installed at the Smith & Wesson factory. This ensures proper engagement with the cylinder ratchet, correct timing, and reliable operation. Aftermarket hands may not meet these exacting standards and can compromise timing, accuracy, or safety.

Installation & Gunsmithing Notes:

Professional gunsmith installation is strongly recommended for this component. Proper installation requires removal of the side plate, disassembly of the trigger mechanism, and precise fitting of the hand assembly. Timing must be checked and adjusted after installation to ensure proper cylinder rotation and lockup. Always follow proper safety procedures and consult a qualified gunsmith.

Why Buy From USA Guns And Gear?

We specialize in hard-to-find Smith & Wesson factory parts for revolvers and pistols. Every part is carefully inspected and guaranteed authentic. Whether you're a professional gunsmith, revolver enthusiast, or K Frame owner, we have the expertise and inventory to support your needs.

Need other K Frame parts or have questions? Contact us by email or phone - our knowledgeable staff can help you find exactly what you need.