Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 619-0050-301 found under Screw Machine by Marine Ventures Ltd Ata Mv Fluids Ha. The National Stock Number assigned to this part is 5305012735111, 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 619-0050-301.