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David Clark Momentary Switch SPST LSR3SAD200104 | 09851P-51
OEM momentary contact switch by David Clark, SPST configuration, model LSR3SAD200104. Engineered for precision activation in aviation communication systems. Part number 09851P-51.
Genuine OEM David Clark Switch: Provides reliable system integration and long-term performance.
SPST Momentary Design: Single-pole, single-throw configuration with press-to-activate functionality.
Model LSR3SAD200104: Built for demanding environments where control precision is essential.
Durable and Compact Construction: Ideal for control panels, headsets, or portable comm units.
Responsive Tactile Feedback: Ensures clear, repeatable input under operational pressure.
Aviation-Grade Quality: Trusted by pilots, technicians, and field operators for critical switching tasks.
The David Clark Momentary Switch SPST (Part Number 09851P-51, Model LSR3SAD200104) is a high-performance, single-pole single-throw (SPST) switch engineered for momentary press activation. It’s ideal for push-to-talk, signal trigger, or transient control inputs in aviation and tactical communication systems.
Designed with OEM precision and compact ruggedness, this switch delivers consistent feedback and long-cycle durability. Whether installed in cockpit controls, field gear, or integrated systems, it provides dependable functionality with David Clark’s trusted engineering quality.
Technical Specifications
Part Number: 09851P-51
Model: LSR3SAD200104
Type: SPST (Single-Pole, Single-Throw)
Function: Momentary contact
Application: Push-to-talk, signaling, aviation comm systems
Best priced around great and speedy service!
Also is the better of the 2 options since it is rated at 5,000 psi, not that I go to that high of pressure but I like the safety and security knowing that my chances of it blowing up in my face are a whole lot better and I can also purchase replacement seals for them at the same shop!!!
I bought the DC PTT because I know and trust the DC quality/durability to hold up to using every day. And so far it’s the best PTT I’ve used. I have a couple other no-name PTTs and the cable sheathing is crumbling and falling off. The DC PTT has worked even in sub zero cabin temp conditions when I didn’t have a functioning heater. I bought two to have a spare but the first one has been working great for 300hrs so far.
