TM 55-1520-240-23-11 TOOL  AND  TEST  EQUIPMENT  REQUIREMENTS NOMENCLATURE OF END ITEMS CH-47D HELICOPTER TOOL OR  TEST EQUIPMENT REFER- ENCE CODE MAINT. CAT. NOMENCLATURE NATIONAL/NATO STOCK NUMBER TOOL NUMBER T276 AVUM Tool Kit, Battery Service 5180-00-542-5812 SC518091CLR03 T277 AVUM/ Tool Kit, Electrical Repairer 5180-00-323-4915 SC518099CLA06 AVIM T278 AVUM/ Tool Kit, Aircraft Mechanic 5180-00-323-4692 SC518099CLA01HR AVIM T279 AVUM Tool Set, No.  1 Reciprocating Engine 4920-00-159-8728 SC492099CLA90REC T280 AVUM Tool Set, No.  1 Fixed Base 4920-00-504-9258 SC492099CLA90W0S T281 AVUM Tool Set, No.  1 Airmobile 4920-00-159-8727 SC492099CLA90 T282 AVUM Tool Set, No.  2 Airmobile 4920-00-567-0476 SC492099CLA92 T283 AVIM Voltmeter, Differential Fluke 803B T284 AVIM Voltmeter, Digital T285 AVUM Voltmeter T286 AVIM Weight, 20 Pounds T287 AVIM Weight, 25 Pounds T288 AVIM Weight, 50 Pounds T289 AVIM Weight, 94 Pounds T290 AVIM Weight, 160 Pounds T291 AVIM Weight, 250 Pounds T291.1 AVIM Welding Set, Inert Gas 3431-00-079-0498 T292 AVUM Wheel, Buffing, Unstitched T293 AVUM Wheel, Buffing Stitched T294 AVUM Wrench 5120-00-076-4380 XW20509 T295 AVUM Wrench, Box, 1-1/2 Inch T296 AVUM Wrench, Open-End, 1-3/4 Inch T297 AVUM Wrench, Open-End, 1-7/8 Inch T298 AVUM Wrench, Spline 5120-00-288-9085 T299 AVUM Wrench, Open-End, 1 Inch T300 AVUM Wrench, Open-End, 2-1/2 Inch T301 AVUM Crowfoot Attachment, 11/16 Inch T302 AVIM Wrench, Open-End, 1-1/8 Inch T303 AVUM Vacuum Pump T304 AVUM Trip Balance 6670-00-401-7195 B-92 Change 1