Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SC A0 54312 1IL ITEM 029 found under Nut Self Locking He by Babcock Inc. The National Stock Number assigned to this part is 5310121638683, 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 SC A0 54312 1IL ITEM 029.