Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M33-1000-1 found under Transformer Current by Square D Co. The National Stock Number assigned to this part is 5950000661277, 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 M33-1000-1.