Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GR28-145 found under Grommet Nonmetallic by Lucas Aerospace Power Equipment. The National Stock Number assigned to this part is 5325000283569, 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 GR28-145.