Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VSF1212-4WW found under Nut Tube Coupling by Alcoa Fastening Systems Ltd. The National Stock Number assigned to this part is 4730005558203, 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 VSF1212-4WW.