Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 919 30K found under Valve Centre Lever by Chicago Faucet Co The. The National Stock Number assigned to this part is 4820012519477, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 919 30K.