Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0.62511UNC2A9.812T1GB7SCC found under Screw Cap Hexagon H by Electric Boat Corporation. The National Stock Number assigned to this part is 5305013433942, 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 0.62511UNC2A9.812T1GB7SCC.