Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31-80155 found under Goggle Laser Protection by Honeywell Aerospace. The National Stock Number assigned to this part is 4240001883728, and the Federal Supply Class is 4240 Safety And Rescue Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31-80155.