Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 01W157-242 found under Setscrew by Falls Filtration Technologies In. The National Stock Number assigned to this part is 5305009956915, 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 01W157-242.