Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 01-1938 found under Transformer Power by N H Researchincorporated. The National Stock Number assigned to this part is 5950013169497, 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 01-1938.