Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6117SS2520 found under Screw Externally Relieved Body by New Haven Mfg Corp. The National Stock Number assigned to this part is 5305002111835, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6117SS2520.