Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV52-807PC2 found under Washer Spring Tensi by Automatic Switch Company. The National Stock Number assigned to this part is 5310010583216, 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 AV52-807PC2.