Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54000-40042 found under Grommet Nonmetallic by Aai Corporation. The National Stock Number assigned to this part is 5325001648962, 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 54000-40042.