Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K53102-5 found under Nut Self Locking Cl by Alcoa Global Fasteners Inc. The National Stock Number assigned to this part is 5310012866495, 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 K53102-5.