Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5305000187993 found under Screw Assembled Washer by E C A Etablissement Central. The National Stock Number assigned to this part is 5305000187993, 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 5305000187993.