Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R89158X05020 found under Stud 0 625 11 X by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 5307015888997, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R89158X05020.