Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CK45-021 found under Connector Set Elect by Aviel Electronics Inc. The National Stock Number assigned to this part is 5935009784662, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CK45-021.