Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PF51-013-108 found under Nut Plain Hexagon by Pf Fishpole Hoists Inc. The National Stock Number assigned to this part is 5310014060018, 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 PF51-013-108.