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The 427/428 line is our incandescent 5/8-inch product still used extensively in commercial and military aviation. This switch product has been qualified to MIL-PRF-22885. See QPL M22885/109.
- Two-pole switch (427) and four-pole switch (428)
- Sunlight readability
- Momentary/alternate/indicator options
- Internal moisture seal
- Optional night-vision lighting
- Solder-free installation with optional poke-home connector