- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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Product Description
?This is a genuine OEM supplied part which is specially designed for use with Milwaukee hammer drills. The part helps to secure the chuck. It provides an identical replacement for a missing or a faulty locking screw that was installed on a new unit. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality screw is made of durable metal and is sold individually.
Frequently Purchased Together
?Troubleshooting
- Milwaukee
- Hammer Drill
- Electric Drill
Videos For installing this part.
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Customer Part Reviews
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Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
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The spindle broke where the screw goes in from the chuck.
Russell from Cochranton, Pennsylvania
- Difficulty Level:
- Easy
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Screw drivers
- Parts Used:
- 44-90-0004, 38-50-0042, 05-80-0430
Chuck retaining screw came loose and snapped.
Bryan from Cleveland, Ohio
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers, Wrench set
- Parts Used:
- 05-80-0430
spindle thread stripped
William from New Lothrop, Michigan
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Pliers, Screw drivers, Wrench set
- Parts Used:
- 38-50-0042, 05-80-0430
Broken gear ring
Victor from Honesdale, Pennsylvania
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 48-66-5185, 05-80-0430
Jammed chuck
Glen from Tucson, Arizona
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Pliers, Screw drivers
- Parts Used:
- 48-66-5185, 05-80-0430
Threaded on new chuck and inserted the left handed screw
The original screw broke off in the drill.
Donnie from MONROE, North Carolina
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Pliers, Screw drivers
- Parts Used:
- 05-80-0430
Chuck was worn out.
Bruce from Virginia Beach, Virginia
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 05-80-0430
Unscrewed old chuck.
Screwed new chuck on.
Replaced screw.
Chuck was stripped and I broke the old screw trying to remove the broken chuck
John from Franklinvile, New Jersey
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 05-80-0430
Lost chuck retaining screw
Mike from WEST SUFFIELD, Connecticut
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 05-80-0430
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Model Cross Reference
Manufacturer Part Number: 05-80-0430
| Brand | Model Number | Description |
|---|---|---|
| Milwaukee | 5378-20 | Electric Drill - 1/2" Electric Hammer Drill |
| Milwaukee | 5378-21 | Hammer Drill - 5378-21 (Serial 897d) 1/2-Inch Electric Hammer Drill Parts |
| Milwaukee | 5378-51 | Hammer Drill - 13mm Hammer-Drill |
| Milwaukee | 5380-02 | Demolition Hammer - Rotary Hammer |
| Milwaukee | 5381-20 | Hammer Drill - Hammer Drill |
| Milwaukee | 5381-21 | Electric Drill - Milwaukee 5381-21-(A67a) Parts |
| Milwaukee | 5381-22 | Hammer Drill - 5381-22 Hammer Drill Parts |
| Milwaukee | 5387-20 | Hammer Drill - Hammer Drill |
| Milwaukee | 5387-22 | Hammer Drill - 1/2" Hammer Drill |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.