Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52LHA71-4-82 found under Nut Self Locking Pl by Harvard Industries Inc. The National Stock Number assigned to this part is 5310010419646, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 52LHA71-4-82.