Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SB4428-1 found under Connector Receptacle Electrical by Applied Communications. The National Stock Number assigned to this part is 5935004197235, 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 SB4428-1.