Thread Lubrication Unit 504019 for Singer 300U Model NR United Sewing Machine
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This item requires confirmation before ordering.
Current pricing, availability, lead time, and machine compatibility
will be verified for your specific requirement.
Please send your machine model, required gauge or size, quantity, and clear photos of the machine nameplate or existing components when available.
Please send your machine model, required gauge or size, quantity, and clear photos of the machine nameplate or existing components when available.
π International customers are welcome.
We serve customers worldwide. Depending on product availability, orders may be sourced or fulfilled through our USA, Singapore, or international supply network.
Please include your destination country and postal code so we can review the most suitable shipping option.
REQUEST A QUOTE
We serve customers worldwide. Depending on product availability, orders may be sourced or fulfilled through our USA, Singapore, or international supply network.
Please include your destination country and postal code so we can review the most suitable shipping option.
U.S. customers may also text the product link and photos to
+1 (770) 744-3831
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.
Most in-stock orders are processed within 3 business days, Monday through Friday. Special-order and non-stock items may require additional handling time
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.
β’ Genuine OEM parts are covered by the manufacturer's warranty where applicable.
β’ Aftermarket and generic parts are covered against manufacturing defects.
β’ If you receive a damaged, defective, or incorrect item, please contact us promptly. Please see our Return & Refund Policy for eligibility, notification requirements, and applicable return terms.
β’ Warranty does not cover damage caused by improper installation, misuse, normal wear, Return & Refund Policy modifications.
If you have any questions, our support team is happy to help before or after your purchase.