| U S STANDARD NEWSPRINT | 480100 |
| U-BARS, ALUMINUM, FABRICATED | 761090 |
| U-BARS, IRON OR STEEL, FABRICATED | 730120 |
| U-BOLTS, IRON OR STEEL | 731815 |
| UINTAITE, NATURAL ASPHALT | 271490 |
| UKELELES | 920290 |
| ULTRAMARINE BLUE | 320642 |
| ULTRASONIC APPARATUS, METAL CLEANING | 847989 |
| ULTRASONIC CLEANING EQUIPMENT | 847989 |
| ULTRASONIC DENTAL SCALERS | 901849 |
| ULTRASONIC MACHINES, METAL REMOVING | 845620 |
| ULTRASONIC SCANNING APPARATUS | 901812 |
| ULTRASONIC THERAPEUTIC DEVICES | 901819 |
| ULTRAVIOLET LAMPS | 853949 |
| ULTRAVIOLET OR INFRARED RAY APPARATUS, ELECTRO-DIAGNOSTIC | 901820 |
| UMBERS, EARTH COLORS | 253090 |
| UMBRELLA CASES, TEXTILE, OF MANMADE FIBERS | 630790 |
| UMBRELLA FABRIC, NYLON, WOVEN, UNBLEACHED OR BLEACHED, DYED, OF YARNS OF DIFFERENT COLORS OR PRINTED | 540741-44 |
| UMBRELLA FRAMES | 660320 |
| UMBRELLA PARTS | 660310 |
| UMBRELLA TRIMMINGS AND ACCESSORIES N.E.S.O.I. | 660390 |
| UMBRELLAS (EXCEPT TOY OR PARTY FAVOR) | 660110 |
| UMBRELLAS (EXCEPT TOY OR PARTY FAVOR) | 660110-99 |
| UMBRELLAS GARDEN OR SIMILAR | 660110 |
| UMBRELLAS, OTHER | 660191-99 |
| UNCASED CORE PENCILS | 960910 |
| UNDECALACTONE | 293229 |
| UNDECANOL, 95 PERCENT OR MORE ALCOHOL | 290519 |
| UNDECENALDEHYDE | 291219 |
| UNDECYL ALCOHOL (UNDECANOL), 95 PERCENT OR MORE ALCOHOL | 290519 |
| UNDERGROUND MINE CONVEYORS, CONTINUOUS ACTION | 842831 |
| UNDERLAYMENT, ACRYLIC LAXTEX | 321410-90 |
| UNDERPADS, SURGICAL ABSORBENT CELLOLOSE WADDING | 481840 |
| UNDERSHIRTS, OF COTTON, KNIT | 610910 |
| UNDERSHIRTS, OF TEXTILE FIBERS, EXCEPT COTTON, KNIT | 610990 |
| UNDERSHORTS, MEN'S AND BOYS', OF COTTON, KNIT | 610711 |
| UNDERSHORTS, MEN'S AND BOYS', OF COTTON, NOT KNIT | 620711 |
| UNDERSHORTS, MEN'S AND BOYS', OF MANMADE FIBERS, KNIT | 610712 |
| UNDERSHORTS, MEN'S AND BOYS', OF MANMADE FIBERS, NOT KNIT | 620719 |
| UNDERSHORTS, MEN'S AND BOYS', OF TEXTILE FIBERS, EXCEPT COTTON OR MANMADE, KNIT | 610719 |
| UNDERSHORTS, MEN'S AND BOYS', OF TEXTILE FIBERS, EXCEPT OF COTTON, NOT KNIT | 620719 |
| UNDERWATER BLOWPIPES | 847989 |
| UNDERWATER BREATHING (SCUBA) DEVICES, SELF-CONTAINED | 902000 |
| UNDERWATER BREATHING DEVICES | 902000 |
| UNDERWATER LIGHTS, BATTERY AND MAGNETO, PORTABLE | 940540-50 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF COTTON, KNIT | 610821 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF COTTON, NOT KNIT | 620891 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF MANMADE FIBERS, KNIT | 610822 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF MANMADE FIBERS, NOT KNIT | 620892 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF TEXTILE FIBERS, EXCEPT OF COTTON OR MANMADE, KNIT | 610829 |
| UNDERWEAR, WOMEN'S AND GIRLS', OF TEXTILE FIBERS, EXCEPT OF COTTON OR MANMADE, NOT KNIT | 620899 |
| UNICYCLES, CHILDREN'S (AND PARTS THEREOF) | 950100 |
| UNIFORM CAPS | 650590 |
| UNION SUITS, WOMEN'S AND GIRLS', OF COTTON, NOT KNIT | 620891 |
| UNION SUITS, WOMEN'S AND GIRLS', OF MANMADE FIBERS, NOT KNIT | 620892 |
| UNION SUITS, WOMEN'S AND GIRLS', OF TEXTILE FIBERS, EXCEPT OF COTTON OR MANMADE, NOT KNIT | 620899 |
| UNIONS, CAST IRON, MALLEABLE | 730719 |
| UNIONS, PIPE, ALUMINUM | 760900 |
| UNIONS, PIPE, CAST IRON, NON-MALLEABLE | 730711 |
| UNIONS, PIPE, COPPER | 741210-20 |
| UNIONS, PIPE, NICKEL | 750720 |
| UNIT CONSTRUCTION MACHINE PARTS | 846693 |
| UNIT CONSTRUCTION MACHINES, SINGLE STATION, METALWORKING | 845720 |
| UNIVERSAL JOINTS | 848360 |
| UNIVERSAL MILL PLATE, 600 MM WIDE OR MORE | 720851 |
| UNIVERSAL MILL PLATE, UNDER 600 MM WIDE | 721113 |
| UPHOLSTERED CHAIRS OF WOOD | 940161 |
| UPHOLSTERED SEATS OF METAL | 940171 |
| UPHOLSTERY FABRIC, COTTON, DENIM | 520942 |
| UPHOLSTERY FABRIC, WOOL, WOVEN, PILE | 580110 |
| UPHOLSTERY FABRIC, WOVEN, NYLON, UNBLEACHED OR BLEACHED, DYED, OF YARNS OF DIFFERENT COLORS OR PRINTED | 540741-44 |
| UPHOLSTERY FABRICS, SILK, WOVEN | 500710-90 |
| UPHOLSTERY LEATHER (EXCEPT BUFFALO) FULL GRAINS AND GRAIN SPLITS, PARCHMENT-DRESSED OR PREPARED AFTER TANNING | 410431 |
| UPHOLSTERY STUFFING, MANMADE FIBERS | 560122 |
| UPHOLSTERY VEGETABLE HAIR | 140290 |
| UPRIGHT PIANOS | 920110 |
| UPRIGHT, SINGLE SPINDLE DRILLING MACHINES, METALWORKING | 845921-29 |
| UPSETTERS, FORGING, METAL FORMING | 846210 |
| URANINITE ORE | 261210 |
| URANIUM COMPOUNDS | 284410-30 |
| URANIUM DEPLETED IN U235, WROUGHT OR UNWROUGHT, AND WASTE AND SCRAP | 284410 |
| URANIUM METAL, WROUGHT OR UNWROUGHT, AND WASTE AND SCRAP | 284410 |
| URANIUM ORES AND CONCENTRATES | 261210 |
| URANIUM OXIDE, DEPLEATED | 284430 |
| URANIUM OXIDE, ENRICHED | 284420 |
| URANIUM OXIDE, NATURAL | 284410 |
| URANIUM, ENRICHED IN ISOTOPES 233 AND 235 | 284420 |
| URANIUM-233 | 284430 |
| URANIUM-235 | 284420 |
| URANOPHANE ORE | 261210 |
| URANOTHORIANITE ORE | 261210 |
| UREA (FERTILIZER MATERIAL) | 310210 |
| UREA PRILLS | 310210 |
| UREA RESINS IN PRIMARY FORMS | 390910 |
| UREA, CRYSTAL, EXCEPT AS FERTILIZER | 310210 |
| UREA-AMMONIA LIQUOR | 310210 |
| UREA-FORMALDEHYDE RESINS IN UNFINISHED FORMS | 390910 |
| UREA-FORMALDEHYDE, LIQUID GLUE | 390910 |
| UREASE | 350790 |
| URENA LOBATA YARN | 530890 |
| URETHANE (ETHYL CARBAMATE) PREPARATIONS, BULK | 300319-90 |
| URINALS, ALUMINUM | 761520 |
| URINALS, CERAMIC, AS PLUMBING FIXTURES | 691010-90 |
| URINALS, IRON OR STEEL | 732490 |
| URINE, CONCENTRATES | 300210-90 |
| URINE, ESTROGENIC | 300210-90 |
| URINOMETERS | 902580 |
| URNS, BASE METAL, PRECIOUS METAL-PLATED, ORNAMENTAL | 711420 |
| URNS, CERAMIC, EXCEPT PORCELAIN OR CHINA, NONORNAMENTAL | 691200 |
| URNS, CERAMIC, ORNAMENTAL | 691310-90 |
| URNS, COFFEE AND OTHER, NONELECTRIC, STEEL OR IRON (NOT CAST) | 732393-99 |
| URNS, COFFEE, ELECTRIC, HOUSEHOLD | 851671 |
| URNS, COPPER | 741819 |
| UROKON SODIUM 30 PERCENT | 300630 |
| USED STEEL RAILS, IRON OR STEEL | 730210 |
| UTENSIL CASES, WOODEN | 442090 |
| UTENSILS, KITCHEN, ALUMINUM | 761519 |
| UTENSILS, KITCHEN, COPPER | 741819 |
| UTENSILS, KITCHEN, STEEL OR IRON (NOT CAST) | 732393-99 |
| UTENSILS, TABLEWARE AND KITCHENWARE OF WOOD, HOUSEHOLD | 441900 |
| UTENSILS, TIN OR PEWTER, EXCEPT HANDTOOLS | 800700 |
| UTENSILS, TOY | 950370 |
| UTILITY LINE POLES, WOOD, TREATED WITH PAINT, STAINS, CRESOTE OR OTHER PRESERVATIVES | 440310 |
