Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4058-125 ITEM 17 found under Hinge Butt by Huntington Ingalls Incorporated. The National Stock Number assigned to this part is 5340012500719, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4058-125 ITEM 17.