1-1586019-4 is a UL 94V-0 receptacle housing designed for 4-position wire-to-wire connectors with a 3.5 mm centerline spacing. The housing is constructed from 6/6 nylon material with UL 94V-0 flame rating and white color, providing excellent electrical insulation and mechanical durability. It features a contact thickness of 0.25 mm (0.010 inches) in copper alloy and is available with optional drain holes and PCB pegs for enhanced assembly flexibility. The connector dimensions include a reference length of 13.6 mm (0.54 inches) and width of 15.0 mm (0.59 inches), making it suitable for compact applications. This receptacle housing is RoHS compliant and mates with corresponding pin contacts, commonly used in industrial control systems, telecommunications equipment, and automotive applications requiring reliable multi-position connections.