Abstract: An improved keyswitch assembly comprises a housing, a plunger which is spring loaded into a first position, and a channel in the housing through which the plunger can slide from the first position to a second position. A keytop is coupled to the other end of the plunger. The plunger contains a tapered shaft portion. A corresponding frustrum shaped interior portion is provided in the channel which is adapted to mate with the tapered shaft when the plunger is in the first position. This structure eliminates excessive movement of the plunger in a lateral direction within the channel. The tapered shaft portion can be fabricated with a noncircular cross-section in order to prevent rotation of the plunger within the channel. In an alternate embodiment, tapered ribs are provided on the plunger along with corresponding tapered grooves in the channel.