Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U22-1A found under Ferrule by Air Parts And Supply Co. The National Stock Number assigned to this part is 2925000904866, and the Federal Supply Class is 2925 Engine Electrical System Components Aircraft Prime Moving. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U22-1A.