Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VH21MSX found under Insert Tube Fitting by Parker Hannifin Ltd. The National Stock Number assigned to this part is 4730015182146, 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 VH21MSX.