Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SL3003B found under Coupling Half Quick Disconnect by Foster Manufacturing Co Inc. The National Stock Number assigned to this part is 4730013030062, 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 SL3003B.