Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DM52877 5 found under Valve Hold Boom Hoist Cylinder by Mactaggart Scott And Co Ltd. The National Stock Number assigned to this part is 4820014210037, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DM52877 5.