Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 542 19 97-40 found under Grommet Metallic by United Rentals North America Inc. The National Stock Number assigned to this part is 5325016229745, 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 542 19 97-40.