Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12299863 found under Backshell Electrical Connector by Ace Aviation Service Inc. The National Stock Number assigned to this part is 5935011147675, 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 12299863.