FUTABA - MD-4PCS - Mechanical Keyboard Switch, Push Button, Normally Open Contact, Push Switch, Package of 10.

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SKU
150004
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FUTABA - MD-4PCS Switch, push-button.

New Genuine Futaba  MD Series

Behavior: Linear

Signaling Type: Metal Contact - Sense method: Metal leaf

Switch Mount: Plate

Keycap mount: Cruciform post

Constituent Component Parts: 16 

Normally Open Keyboard, round, spring-loaded momentary.

Bounce time: 5 ms (KBM)

Peak force: 3.5±0.8 oz (99±23 g) (KBM)

Pretravel: 0.03±0.01″ (0.8±0.25 mm) (KBM)

Total travel: 0.12±0.01″ (3.0±0.25 mm) (KBM)

Snaps into a 0.61" / 15.4mm dia hole, stays secure with two pop out flanges.

1.15" / 29mm long from tip of "x" plunger to two pins.

Rated lifetime: 10M (KBM)

Additional Information: https://deskthority.net/wiki/Futaba_MD_series

Appears to be silver plated contacts inside.

Note: Various vintage computer (IBM), gaming (Atari) or workstation (TeleVideo) keyboards used Cherry MX keys or the more period-correct George Risk KBM-01-01 (Futaba MD-4PCS) keys.  

Package of 10.