Compatible with single-needle lockstitch machines EQUIPPED WITH THREAD TRIMMER (corte de hilo) — any brand. The Lockstitch Fixed Knife (Part #115019001) is a genuine JACK original replacement part designed for JACK A4, A5, A5e and JK-5550 series lockstitch machines. Manufactured to OEM specifications for precise fit and reliable performance. Equivalent Part Numbers JACK: 115019001 Compatible Machines This part fits the following industrial sewing machine models: JACK: A4, A5, A5e, JK-5550, A5E-B, A2C-C, A4C, F5-HL-7, JK-5559F-W, F6, A5E-B-H-7, A3, A7 SIRUBA: DL-7200-BM1-16, DL720-M1, DL7200C-BH1-16Q, DL7200C-BM1-16Q SPEEDWAY: SW 8700 D, SW 8000 A, SW 8700 C, SW9000-56, AI4 SINGER: 141G-20 JUKI: DDL8100eH, DDL-9000C, DDL-9000 BROTHER: S-7300A ZOJE: A6000 Technical Specifications Brand JACK Part Number 115019001 Part Type Knives Condition New – OEM Original Looking for a replacement lockstitch fixed knife for your JACK A4 or A5 lockstitch machine? This genuine OEM part ensures reliable performance and precise fit. Shop with confidence — all parts ship from Miami, FL. ⚠️ Compatibility Notice: Always verify your machine model and subclass number before ordering. Part numbers and compatibility are provided as a reference only. Supra Sewing is not responsible for purchases made without confirming compatibility with your specific machine. All sales on replacement parts are final.
