TM 5-4320-302-14 TOOL OR TEST EQUIPMENT MAINTENANCE NATIONAL/NATO TOOL REF CODE CATEGORY NOMENCLATURE STOCK NUMBER NUMBER 19 F, H Valve Holder 122304 20 H Valve Guide Mandrel, 8 mm 122305 21 H Valve Guide Mandrel Handles 122306 22 H Valve Seat Ring Mandrel 122450 23 H Valve Guide Mandrel, 8 mm 123310 24 H Valve Guide Reamer, 8 mm 123510 25 H Valve Seat Ring Mandrel 123950 26 H Valve Seat Ring Mandrel 123960 27 H Cylinder Head Sealing 124480 Surface Cutter 28 F Pushrod Tube Compressor 125300 29 H Cylinder Head Lathe Fixture 125500 30 H Piston Ring Pliers 130300 31 H Piston Ring Groove Gage 130360 32 H Piston Ring Compressor, 130530 100 mm 33 H Piston Pin Bush Inserter 131310 34 H Piston Heating Unit 139000 35 H Gear Puller 141000 36 H Main Bearing Shaft Seal 142510 Guide 37 H Main Bearing Shaft Seal 142530 Press 38 H Gasket Ring Inserter 142540 39 H Gasket Ring Remover 142700 40 H Camshaft Plug Installer 143600 41 H Camshaft Bearing Mandrel 143620 42 H Camshaft Bearing Mandrel 143690 B-12    Change 1