344090-1 is a white nylon lock plate designed for use with 2-position cap connector housings in the Econoseal III 250 Series wire-to-wire connector system. This double lock plate is sold separately and one lock plate is required for each connector housing. The lock plate is used with cap connectors that utilize tab contacts, providing secure contact retention. It is part of the AMP Sealed Connectors product line, designed for reliable wire-to-wire connections in applications requiring environmental sealing.