Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B6631-12 found under Connector Receptacle Electrical by Gulton Industries Inc. The National Stock Number assigned to this part is 5935004386487, 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 B6631-12.