The 248-8509-000 is a Cannon CA Bayonet connector shell assembly (Style B with through holes) designed for size 24 shell applications. This connector features a barrel diameter (d1) of 40.9 mm and a length (l1) of 44.5 mm, with a contact hole diameter (d2) of 3.7 mm for through-hole mounting. The shell is engineered to accommodate multiple contact configurations and wire sizes ranging from 0.14 mm² to 50.0 mm² (AWG 18 to 2), supporting various contact sizes including 15/16, 25/12, 60/100/8, 160/4, and 500/0. This connector is widely used in aerospace, defense, medical, and industrial applications where reliable bayonet-style connections and proven quality are essential for critical signal transmission and power distribution.