Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number W002153 found under Bit Mouthpiece Breathing Apparat by Air Liquide Advanced Technologies. The National Stock Number assigned to this part is 4220014743448, and the Federal Supply Class is 4220 Marine Lifesaving And Diving Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like W002153.