Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 431246-4 found under Screw Machine by Teledyne Camera Systems Teledyne. The National Stock Number assigned to this part is 5305013528606, 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 431246-4.