049931-0001 is a KPT/KPSE/KPTC circular connector series engineered for reliable interconnection in harsh environments, compliant with VG95328 and MIL-DTL-26482 Series I standards. The connector family offers multiple shell sizes ranging from 8 to 24, with dimensional specifications including shell diameter (Ø A) from 12.00 mm to 38.10 mm, contact sizes of 12, 16, and 20 AWG (0.2 to 2.0 mm²), and thread types from 9/16-24UNEF to 1-5/8-18UNEF depending on shell size. Available contact terminations include pins and sockets with options for gold or silver plating, waterproof insulation dimensions, and gasket materials (Alu-Flex conductive or chloroprene non-conductive). These connectors are widely used in aerospace, defense, industrial, and marine applications where durability, environmental sealing, and reliable signal transmission are critical requirements.