- The clever way to maintain reliable thread tension for your sewing machine - Replacement spring for consistent performance - Designed for easy repair and quick installation - Precisely manufactured for a perfect fit and fast replacement - All compatibility details and technical specifications are listed below If you use your sewing machine frequently and intensively, the thread tension spring may lose its elasticity over time. When the thread is no longer held securely under tension, it’s recommended to replace the thread tension spring. Our replacement spring is precisely engineered for seamless installation and built with high-quality materials for long-lasting durability. Restore your sewing machine to optimal working condition with this reliable thread tension spring. Package includes: 1 x Thread tension spring Specifications: - Bracket width: 9.5 mm - Spring coil diameter: 10.5 mm - Wire thickness: 0.6 mm - Total length: 30 mm - Material: Plastic - Color: Black - Weight: 1 g Compatible with the following models (use Ctrl + F or Cmd + F to search for your model): Singer 212W, Pfaff 141, 145, 333, 335, 471, 474, 491, 545, 1021, 1022, 1200, 1243, 1245, 1247, 1263, 1200-1 Replaces original parts: Seiko 10689 / MP60A0187, MP60A1187 / 375/P141 / Brother 151011001 / Juki B3128051-000, J1027-0A / Highlead H4713C8001 / Pfaff 9101002305000 / Singer 267368 - The clever way to ensure high-quality replacement parts and accessories - Premium quality designed for extended lifespan of your electronic devices