Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PG 13.5-213323 found under Push On Nut by Lapp Usa Inc. The National Stock Number assigned to this part is 5310016636080, 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 PG 13.5-213323.