Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 133673-1 found under Cover Protective Dust And Moistu by Rotating Precision Mechanisms Inc. The National Stock Number assigned to this part is 5340016022447, 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 133673-1.