Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NASM16491TY11 CL3 SI2 found under Grommet Metallic by National Aerospace Standards. The National Stock Number assigned to this part is 5325002316605, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NASM16491TY11 CL3 SI2.