Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1607 found under Setscrew by Permoflux Div Of Dx Radio And Tv. The National Stock Number assigned to this part is 5305004988638, 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 1607.