Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 300221-003 found under Connector Receptacl by Gilbert Engineering. The National Stock Number assigned to this part is 5935011101745, 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 300221-003.