Thread Lubrication Unit 504019 for Singer 300U Model NR United Sewing Machine
Regular price
$0.54 USD
Need Help Finding the Right Part?
🌍 Ships from USA (Georgia) office. Global sourcing ensures availability if not in stock.
Secure checkout • Easy returns • Free shipping over $99
Availability is subject to supplier inventory. If your order is time-sensitive, please contact us before placing your order.
Thread Lubrication Unit (504019) for Singer 300U
Enhance your sewing performance and protect your thread with this Thread Lubrication Unit (Part #504019). Specifically designed for the Singer 300U and United Sewing Machine NR models, this unit is an essential accessory for high-speed industrial stitching, especially when working with synthetic or bonded threads.
Key Features & Benefits
Thread Cooling: Effectively reduces friction-induced heat as the thread passes through the tension discs and needle, preventing thread melting and breakage at high RPMs.
Consistent Lubrication: Provides a controlled application of silicone or thread lubricant, ensuring smooth passage through heavy or abrasive materials.
Minimized Skipped Stitches: By reducing thread tension fluctuations caused by friction, this unit helps maintain consistent loop formation.
Industrial Durability: Constructed from clear, high-impact materials, allowing for easy monitoring of lubricant levels while withstanding the rigors of a production environment.
Precision Fit: Engineered as a direct replacement for part #504019, ensuring a stable mount and proper alignment with the thread path.
Orders are typically processed within 1–3 business days.
We ship from our Georgia, USA warehouse. If an item is temporarily unavailable in the U.S., we source it through our global supplier network and will notify you of the estimated lead time.
Free shipping is available on U.S. orders over $99.
Once your order ships, you will receive a tracking number by email.
For urgent orders or shipping questions, please contact us before placing your order.
We stand behind the quality of the products we sell.
• Genuine OEM parts are covered by the manufacturer's warranty where applicable.
• Aftermarket and generic parts are covered against manufacturing defects.
• If you receive a damaged, defective, or incorrect item, please contact us within 30 days of delivery.
• Warranty does not cover damage caused by improper installation, misuse, normal wear, or modifications.
If you have any questions, our support team is happy to help before or after your purchase.