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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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Product OverviewThe 19mm push button momentary switches (Model: FLM19-F-4-X) are premium industrial-grade control components designed by FILN. These ultra-thin metal push buttons are specifically engineered for applications with limited back-panel space, offering a small space installation switch solution without compromising durability. With certifications including ISO9001, CE, VDE, RoHS, SGS, UL, and IP65, these switches ensure global compliance and reliability. Constructed from stainless steel tactile switch materials or zinc-alloy black metal switch finishes, they provide a professional aesthetic for industrial panel mount switch needs in CNC machines, medical devices, and automation equipment.
| Feature | Details |
|---|---|
| Model Number | FLM19-F-4-X |
| Mounting Hole Size | 19mm (0.75 inch) |
| Switch Function | Momentary (Self-reset) |
| LED Illumination | Non-Illuminated (No Light) |
| Button Head Shape | Flat Head |
| Terminal Type | 2-Pin Solder/Plug-in Terminal |
| Rated Voltage | 36V DC / 250V AC | Rated Current | 5A DC / 5A AC |
| Insulation Resistance | ≥ 1000MΩ | Contact Resistance | < 50mΩ |
| Dielectric Strength | 1800V | Product Certification | ISO9001, CE, VDE, RoHS, SGS, UL |

| Component | Material Material |
|---|---|
| Button Head | 304 Stainless Steel / 6063 Aluminum Alloy |
| Shell Sleeve | H59 Brass / 304 Stainless Steel / Zinc-Alloy Black |
| Terminals | H62 Copper Alloy |
| Base | PA66+GF20% Flame Retardant Nylon |
| Contacts | Silver Contacts (AgCdO12) |
| Waterproof Ring | SIL Silicone |
| Operating Temp | -25°C to +85°C |
| Protection Level | IP65 Waterproof, IK08 Impact Resistance |
| Mechanical Life | 500,000 cycles |
| Electrical Life | 100,000 cycles (250V/3A) / 50,000 cycles (250V/5A) |
Looking for more variations?
View All Push Button SwitchesThese switches are widely used in electrical equipment requiring circuit control. They serve as momentary reset button switches for:


The FLM19-F-4-X functions as a 2-pin Normally Open (NO) switch. When the button is idle, the circuit is broken. When pressed, the circuit is completed.
| Connection Mode | Default State | Action (Pressed) |
|---|---|---|
| Normally Open (NO) | Device OFF | Device ON |
These are electrical switches designed to mount in a 19mm hole. The term "momentary" means they only remain in their active state while being physically pressed, returning to their default position once released. In industrial settings, they act as "triggers" for signals or power starts.
| Feature | Pin Terminal (This Model) | Screw Terminal | Pre-wired |
|---|---|---|---|
| Wiring Speed | Fast (Solder/Quick-connect) | Moderate | Immediate |
| Volume | Most Compact | Larger | Compact |
| Lifespan | Very Long | Long | Long |
Official Website: www.filn.com
Email: inquiry@cnylin.com.cn

Q1: Is this 19mm push button waterproof?
A: Yes, it is rated IP65 waterproof, making it a perfect waterproof 19mm momentary switch for outdoor and industrial use.
Q2: How many pins does the FLM19-F-4-X have?
A: This model is a 2-pin terminal push button, simplifying connection for standard momentary operations.
Q3: What is the difference between momentary and latching?
A: Momentary (Self-reset) means the button returns to its original position after you release it. Latching (Self-locking) stays in the pressed position until you press it again.
Q4: Can I use this in a car?
A: Yes, the 36V DC rating makes it ideal for 12V/24V automotive applications like horns or ignition triggers.
Q5: What material is the black version?
A: The black version is made of high-strength zinc-alloy black metal switch material with a corrosion-resistant coating.
Q6: Is it easy to install in tight spaces?
A: Absolutely. It features an ultra-thin metal push button design, specifically for small space installation switch needs.
Q7: Can I get this switch with a pre-wired harness?
A: Yes, FILN provides filn factory custom switch services, including wire length and connector assembly.
Q8: What do the different colors of buttons signify?
A: Red usually denotes stop/emergency; Green is for start; Blue/Yellow are for specific functions; White is a general-purpose indicator.
Q9: Does it support 220V?
A: The switch contacts support up to 250V AC at 5A, suitable for mains power control.
Q10: Are these switches certified?
A: Yes, they carry CE, VDE, RoHS, UL, and SGS certifications.
At FILN, we specialize in delivering precision-engineered indicator lights, push button switches, and rocker switches tailored to your unique requirements. While our products default to standard voltage ranges (12-24V and 110-220V), we understand that specialized applications demand flexibility.
Need a Custom Voltage Solution? Simply inform us of your desired voltage specifications (e.g., 5V, 48V, or non-standard ranges), and our engineering team will craft a solution within 10-15 business days.
✅ Expertise You Can Trust: Over 20 years of experience in industrial-grade electronic component production.
✅ End-to-End Customization: From voltage adjustments to bespoke designs (shape, color, IP rating), we adapt to your needs.
✅ Quality Guaranteed: All custom orders undergo rigorous testing to meet CE/RoHS/IP65 standards.
✅ Scalable Support: Whether prototyping or bulk orders, we ensure seamless delivery.
Consultation: Share your technical requirements via email or our contact form.
Design & Approval: Receive 3D models or samples for confirmation.
Production & QC: Precision manufacturing with real-time updates.
Global Shipping: Trackable logistics to your doorstep.
Email: inquiry@cnylin.com.cn
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