Tension Nut. Specifically designed for the thread tension assembly of Pfaff 1245 and 1246 industrial sewing machines, this nut allows for fine-tuned adjustments to ensure consistent thread delivery, even when working with heavy-duty bonded nylon or polyester threads.

Key Features & Benefits
Precise Calibration: Features clean, accurate threading for smooth, incremental adjustments to your upper thread tension.

Ergonomic Grip: The outer surface is designed for easy manual adjustment, allowing you to quickly adapt to different fabric thicknesses or thread weights.

Direct Fit Replacement: Manufactured to the exact specifications of the original Pfaff 91-001-522-25 part, ensuring compatibility with your existing tension post and spring.

Durable Construction: Built from high-quality materials to resist stripping and withstand the constant vibrations of high-speed industrial sewing.

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.