Product Description
**Milwaukee parts change not only by model# but also by serial number. To look up your tools parts break down on Milwaukee's website please click here:
Milwaukee Lock Pin Spring
Model Number: 40-50-0036
The Milwaukee 40-50-0036 is a genuine OEM Lock Pin Spring, the spring that provides the force for a lock pin mechanism within the tool. A lock pin is the pin that engages to hold a component in a set position, such as a spindle lock that holds the spindle for accessory changes, a shift or mode lock, or a latch pin, and the lock pin spring is what drives that pin: it pushes the pin into engagement, or returns it to its default position, and provides the consistent tension the mechanism is designed around. The spring's rate, free length, and wire diameter are all critical to correct function, so an incorrect spring can cause the lock pin to feel wrong, fail to engage, or fail to return even if it physically fits. Because the spring is cycled every time the lock is used, it is a wear component: over time it can fatigue, take a set, or break, at which point the lock pin may not hold or release properly. Replacing it with the correct genuine Milwaukee OEM lock pin spring restores proper, reliable lock operation.
Because Milwaukee Tool specifies replacement parts by both catalog number and serial number, and because springs are specific to the exact mechanism they serve, always verify your tool's serial number against the official Milwaukee service parts diagram before ordering to confirm this is the correct lock pin spring for your tool and its lock mechanism. Do not order by appearance, since springs that look similar can differ in rate and free length, and the diagram is what confirms the correct part. A spring that has been removed or distorted during disassembly should be replaced rather than reused, since a spring that has lost its temper will not drive the lock pin properly. The lock pin, lock pin cap, retaining ring, and related components that work with this spring are separate parts that vary by tool, so refer to your tool's parts diagram for the correct companion part numbers, and inspect the lock pin and its bore when replacing the spring since these parts work together.
Features
- Genuine Milwaukee OEM service part, not an aftermarket substitute
- Lock Pin Spring, the spring that drives a lock pin mechanism
- Provides the force that engages or returns the lock pin
- Serves a spindle lock, shift or mode lock, or latch pin mechanism
- Gives the consistent tension the lock mechanism is designed around
- Spring rate, free length, and wire diameter are critical to correct function
- Restores proper lock operation when the original fatigues or breaks
- A wear component cycled every time the lock is used
- Manufactured to Milwaukee specification for the correct force and fit
- Order by exact catalog number, since similar-looking springs differ
- The lock pin, cap, and related parts are separate parts, sold separately
- Verify catalog number and serial number before ordering
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 40-50-0036
- Official Description: Lock Pin Spring
- Component Type: Lock pin mechanism spring
- Function: Drives or returns the lock pin in a lock mechanism
- Primary Fitment: Verify by catalog and serial number on the parts diagram
- Also Referenced On: Verify additional applications using Milwaukee's online parts lookup
- Parts Diagram Position: Verify the figure and bulletin number on Milwaukee's online parts lookup
- Quantity: Sold individually, quantity per tool varies by model
- Part Type: Genuine Milwaukee OEM Replacement Part
Includes
- (1) Milwaukee 40-50-0036 Lock Pin Spring
The lock pin, lock pin cap, retaining ring, and related components that work with this spring are NOT included, vary by tool, and are sold separately - refer to your tool's parts diagram for the correct part numbers and quantities. Always verify by serial number using Milwaukee's online parts lookup before ordering.
