Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number YMD 6861 found under Valve Linear Direct by Appleton Electric Ltd. The National Stock Number assigned to this part is 4820016027668, 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 YMD 6861.