Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1S9172-0401 found under Connector Receptacle Electrical by Mcs Corporation. The National Stock Number assigned to this part is 5935002568607, 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 1S9172-0401.