Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 642-0005-743 found under Polarizing Key Elec by Gilbert Engineering. The National Stock Number assigned to this part is 5935008243697, 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 642-0005-743.