Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 750-4450 found under Panel Control Electrical Electronic Equipment by Northern Telecom Systems Corp. The National Stock Number assigned to this part is 1680006747579, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 750-4450.