Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PSC0000000431 found under Disk And Tape Drive Unit by Progeny Systems Corporation. The National Stock Number assigned to this part is 7025015373623, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PSC0000000431.