Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV202-55 ITEM 36 found under Block Adjusting Scr by Automatic Switch Company. The National Stock Number assigned to this part is 4820012789903, 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 AV202-55 ITEM 36.