Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 741222-A01 found under Washer Key by Spd Electrical Systems Inc. The National Stock Number assigned to this part is 5310014401595, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 741222-A01.