Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N8400 found under Cock Cutout by General Signal Corp. The National Stock Number assigned to this part is 2240006510569, and the Federal Supply Class is 2240 Locomotive And Rail Car Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N8400.