Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ENNM123188-0001 found under Fastener Assembly by Electric Boat Corporation. The National Stock Number assigned to this part is 4820015306840, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ENNM123188-0001.