Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50004155-7 found under Thumbscrew by Bureau De Gestion Otan Hawk. The National Stock Number assigned to this part is 5305012900812, 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 50004155-7.