Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PL2053 found under Nut Plain Hexagon by Phaostron Instrument And Electronic. The National Stock Number assigned to this part is 5310002084349, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PL2053.