Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 81974400142 found under Clamp Hose by Man Truck And Bus Ag. The National Stock Number assigned to this part is 4730121403653, 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 81974400142.