Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D-2490-R3-RK found under Repair Kit Solenoid by Insinger Machine Company The. The National Stock Number assigned to this part is 4810015016393, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D-2490-R3-RK.