Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40343 40028 1 found under Cover Protective Dust And Moistu by Aai Corporation. The National Stock Number assigned to this part is 5340016627923, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 40343 40028 1.