Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 44048-83 found under Valve Bleeder Hydra by Hardman Aircraft Inc. The National Stock Number assigned to this part is 4820015658153, 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 44048-83.