Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P19500-189-01 found under Semiconductor Device Diode by Program Manager Advanced Attack. The National Stock Number assigned to this part is 5961012565310, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like P19500-189-01.