Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MCS112A found under Packing Nut by Siemens Demag Delaval Turbomachi. The National Stock Number assigned to this part is 4730003948049, 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 MCS112A.