Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RM1-143 found under Elbow Flange To Tube by Santa Rosa Mfg Co Inc. The National Stock Number assigned to this part is 4730010420508, 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 RM1-143.