Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PA203972120 REV 3 ITEM 10 found under Fuse Cartridge by Alstom Power Conversion Usa Inc. The National Stock Number assigned to this part is 5920015494676, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PA203972120 REV 3 ITEM 10.