Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5N8388 found under Rotor Air Starter by Caterpillar Inc. The National Stock Number assigned to this part is 2990011995772, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5N8388.