Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3675-6R7-3520 found under Screw Assembled Washer by Paramount Panelsinc. The National Stock Number assigned to this part is 5305001775728, 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 3675-6R7-3520.