Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D3921 found under Knife by Huck International Inc. The National Stock Number assigned to this part is 3610008948880, and the Federal Supply Class is 3610 Printing Duplicating And Bookbinding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D3921.