Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K380-50 found under Kit Screw by Navair And Navsea Managed. The National Stock Number assigned to this part is 5305005137067, 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 K380-50.