Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DSR-21P4E5-12.0J found under Connector Receptacl by Min E Con Llc. The National Stock Number assigned to this part is 5935010992605, 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 DSR-21P4E5-12.0J.