Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1191-4CNV X 1 2IN found under Cap Protective Dust And Moisture Seal by Armstrong Precision Components Ltd. The National Stock Number assigned to this part is 5340998012012, 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 1191-4CNV X 1 2IN.