The MLSS156-18-C is an MAS-CON Series 156 header connector designed for reliable interconnection in compact electronic assemblies. This 18-position connector features a 3.69 mm pitch spacing, 180° breakable design with integrated locking mechanism, and operates without polarization for flexible mating configurations. The connector has a pin detail tolerance of ±0.018 inches (0.46 mm) at the tips and allows up to 3° maximum twist in either direction for alignment flexibility. Dimension A for the 18-position configuration is 2.808 inches (71.32 mm), with Dimension B at 2.652 inches (67.36 mm). This connector is commonly used in industrial control systems, telecommunications equipment, and modular electronic devices where space-efficient, secure interconnection is required.