This is a surplus purchase but is brand new never used. NOS #17283 Nitrous Oxide, Nozzle Mounting Kit. Description: Nozzle Mounting Kit Required for mounting nitrous nozzles in thinwall tubing or rubber hoses. Specifications: Product Line: NOS Nozzle Mounting Kits Part Type: Nitrous Nozzle Mount Kits Part Number: N23-17283 Nozzle Thread Size: 1/16 in. NPT Nozzle MountMaterial: Brass Nozzle Mount Finish, Natural Quantity,Sold individually.