Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S17090305 found under Faceform by Avon Protection Systems Inc. The National Stock Number assigned to this part is 4240015298338, 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 S17090305.