Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WF2-1018 found under Retainer Filter Sea by Malabar. The National Stock Number assigned to this part is 4820011467954, 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 WF2-1018.