Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1D530-547 ITEM 25 found under Slide Directional Control Linear by Hpm Corp. The National Stock Number assigned to this part is 4820013111029, 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 1D530-547 ITEM 25.