Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5-603-242 found under Support Assembly Bo by Urdan Industries Usa Inc. The National Stock Number assigned to this part is 2590012994724, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5-603-242.