Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST53CE-01-03-03-01-01-BCE found under Breathing Apparatus Self Contain by Owen International Pty Ltd. The National Stock Number assigned to this part is 4240016245604, and the Federal Supply Class is 4240 Safety And Rescue Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST53CE-01-03-03-01-01-BCE.