Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GR3404A found under Grommet Nonmetallic by Richco Inc. The National Stock Number assigned to this part is 5325016534779, 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 GR3404A.