Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HBL2321VBK found under Connector Plug Elec by Hubbell Corp. The National Stock Number assigned to this part is 5935015735803, 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 HBL2321VBK.