The Pressure Adjusting Screw (Part 11381101800) 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: 11381101800
Compatible Machines
This part fits the following industrial sewing machine models:
JACK: A4, A5, A5e, JK-5550, A6F, F5
Technical Specifications
Brand
JACK
Part Number
11381101800
Part Type
Dials
Condition
New – OEM Original
Looking for a replacement pressure adjusting screw 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.
