Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1 2IN. N5WBRASS found under Nozzle Fire Equipment by Bete Fog Nozzle Inc. The National Stock Number assigned to this part is 4210013733230, and the Federal Supply Class is 4210 Firefighting Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1 2IN. N5WBRASS.