Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 673051 found under Screw Assembled Washer by Sasco Inc Canadian Div. The National Stock Number assigned to this part is 5305003585376, 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 673051.