Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 05572H21-00 found under Connector Id Tag by Ctc Enterprise Ventures Corporation. The National Stock Number assigned to this part is 1680016424899, 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 05572H21-00.