Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RB000077-001 found under Filter Element Air Conditioning by L 3 Communications Integrated. The National Stock Number assigned to this part is 1660014474737, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RB000077-001.