Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99-6038823 found under Screw Close Toleran by Nato Stock Number Assigned By An. The National Stock Number assigned to this part is 5305004716645, 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 99-6038823.