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- Model:F80375K00AP
- SKU:F80375K00AP
Genuine Panasonic Microwave Door Open Button Return Spring
Part Numbers: E80378A0AG | F80375K00AP | F80357K00AP
Is your microwave's door release button sticking, failing to pop back out after being pressed, or feeling completely limp and unresponsive? This is typically caused by a worn-out, stretched, or broken internal button return spring.
The Genuine Panasonic E80378A0AG cylindrical compression spring is an official factory service part (Made in Indonesia) designed to instantly restore the original snappiness, tactile click, and smooth, trouble-free operation of your microwave's door release mechanism.
Technical Specifications:
Part Type: microwave Door Open Button / Lever Return Spring
Material: high-tensile carbon spring steel with a protective galvanized anti-corrosion coating
Shape: cylindrical compression spring (compresses when the button is pressed)
Approximate Dimensions: height: 30 mm, Diameter: 14 mm
Condition: brand new, 100% Genuine OEM part in factory packaging (as shown in the image
e80378a0ag-pruzhina-knopki-dveri-svch-pechi.webp)
Full Compatibility List for Panasonic Models:
This return spring is the absolute standard for an extensive range of Panasonic solo, inverter, and convection microwave ovens. It is guaranteed to fit the following models:
NN-ST / NN-SD Series: NN-ST349M, NN-ST349W, NN-ST556W, NN-SD361M, NN-SD366M, NN-SD366W, NN-SD377S, NN-SD556M, NN-SD36HB, NN-SD38HS
NN-GD Series (Grill / Inverter): NN-GD366M, NN-GD366W, NN-GD368M, NN-GD371M, NN-GD376S, NN-GD382S, NN-GD391S, NN-GD576M, NN-GD576W, NN-GD577M, NN-GD577W, NN-GD588S, NN-GD37HB, NN-GD38HS, NN-GD39HS
NN-GT Series: NN-GT347W, NN-GT348M, NN-GT546W, NN-GT548M
NN-K / NN-S Series: NN-K543WF, NN-K544WF, NN-K545WF, NN-K573MF, NN-K574MF, NN-K575MF, NN-S553WF, NN-S554MF, NN-S554WF
NN-CF Series (Convection): NN-CF770M
Technician's Installation Tip: replacing this spring does not require special skills or complex tools. Simply remove the microwave's outer cabinet wrapper carefully (make sure to unplug the appliance from the wall outlet first!), pull out the button housing block, and mount the new spring onto its designated plastic guide pin/shaft.
Why Is It Crucial to Buy a Genuine OEM Spring?
Cheap universal springs from local hardware stores often have uncalibrated stiffness. A spring that is too weak won't push the button back to its starting position, whereas a spring that is excessively stiff will gradually snap the fragile plastic brackets, stoppers, and mounting tabs inside the control panel assembly. A genuine Panasonic part is engineered down to the micron and is built to withstand hundreds of thousands of presses.
Don't put off the repair—order your genuine replacement spring today and bring effortless comfort back to your kitchen!

