Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NK-111-1 found under Restrictor Fluid Fl by Tyco Valves And Controls Lp. The National Stock Number assigned to this part is 4730011855181, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NK-111-1.