Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5900 00 223 found under Plate Electrical Shield by Northern Telecom Systems Corp. The National Stock Number assigned to this part is 5999012785904, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5900 00 223.