Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74900-43A632L found under Lock End by Wilson J G Corp The. The National Stock Number assigned to this part is 2040003100810, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74900-43A632L.