Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SKC-1006 ITEM X553 found under Stud Continuous Thread by Coffin Turbo Pump Inc. The National Stock Number assigned to this part is 5307014156133, 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 SKC-1006 ITEM X553.