The 185534-1 is a 26-position right-angle PCB header connector designed for the Micro Quadlok Interconnection System (MQS), featuring integrated board locks for secure mounting. The housing is constructed from PBT GF20 material with CuSn6 contacts that are post-tin plated, ensuring reliable electrical performance and corrosion resistance. Key dimensional specifications include a 2.54 mm pitch, overall length of 40.2 mm, width of 40.64 mm, and height of 48.2 mm, with contact spacing of 6 × 2.54 mm. This connector is commonly used in printed circuit board applications requiring robust interconnection with keying and locking mechanisms to prevent accidental disconnection.