Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SK-2864 ITEM 18 found under Transformer Current by Insinger Machine Company The. The National Stock Number assigned to this part is 5950013535155, and the Federal Supply Class is 5950 Coils And Transformers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SK-2864 ITEM 18.