THE ASSEMBLY IS OF SEAMLESS COLD DRAWN CONCENTRIC HOLLOW RIGID TUBE MADE OF AMS5557 CORROSION AND HEAT RESISTANT STEEL, MEASURING 41.7 INCHES. IT IS USED AS A FUEL/LUBRICANT/AIR SUPPLY PIPELINE TO THE GAS TURBINE ENGINE. 7 BENDS FORMED TO PRECISE ANGLES AT PRECISE POSITIONS ALONG ITS LENGTH TO VERY TIGHT TOLERANCES. TO THE OUTSIDE OF THIS SHAPED TUBE 6 OFF WEAR SLEEVES MADE OF AMS5557/AMS5510 CRS STEEL ARE BRAZED INTO SPECIFIC POSITIONS WITH BRAZE MATERIAL AMS4772 AND FLUX TO AMS2275. AT EACH END OF THE TUBE ASSEMBLY, TUBE FERRULE REDUCERS MADE OF AMS5645 CRS STEEL ARE WELDED INTO POSITION. THEN THE TUBE NUT COUPLINGS MADE OF AMS5645/5646 CRS STEEL ARE FITTED FOR ATTACHING THE ASSEMBLY TO THE AIRCRAFT ENGINE.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8411 - TURBOJETS, TURBOPROPELLERS AND OTHER GAS TURBINES. GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 841191 - PARTS OF TURBOJETS OR TURBOPROPELLERS. TARIC CODE 8411910090 - OTHER THAN ELSEWHERE SPECIFIED. ALSO CLASSIFIED IN ACCORDANCE WITH NOTE 2(B) TO SECTION XVI. HARMONIZED SYSTEM EXPLANATORY NOTES (HSEN) TO HEADING 8411.