Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FR-0055-2090 found under Panel Electrical Electronic Equi by Mosebach Manufacturing Company. The National Stock Number assigned to this part is 5975016563996, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FR-0055-2090.