Feed Dog Nr 281946 for Singer Industrial Sewing Machines
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Feed Dog (281946 / NR421) for Singer 300U
Ensure powerful and consistent material transport with this Feed Dog (Part #281946). Specifically engineered for the Singer 300U and United Sewing Machine NR models, this feed dog is the primary component for moving heavy mattress materials and thick fabrics through the sewing area.
This part is also identified by and interchangeable with part number NR421.
Key Features & Benefits
Aggressive Tooth Profile: Features precision-milled teeth designed to grip dense materials, such as mattress ticking and heavy webbing, without slipping or damaging the fabric.
Dual Part Compatibility: A direct replacement for both #281946 and #NR421, ensuring a perfect fit across different iterations of the 300U and United NR series.
Hardened Tool Steel: Manufactured from high-carbon steel and heat-treated to maintain sharp tooth edges even after millions of cycles against abrasive industrial fabrics.
Synchronized Feeding: Engineered to work in perfect harmony with the needle and presser foot movement, ensuring uniform stitch length and preventing material "puckering."
Compatible Machines
- Singer 300UX5 Tape Edge
- Singer 300U Model NR United
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.