Figure 111. Trailer Air Couplings and Related Parts. ∗ a PART OF ITEM 1 ∗ b PART OF ITEM 4 ∗ c PART OF ITEM 6 ∗ c 6 ∗ a ∗ a 1 2 5 4 3 ∗ b ∗ b TM 9-2320-386-24P 0112 00 UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST EXTENDED SERVICE PROGRAM (ESP) TRUCK, CARGO, 2-1/2-TON, 6X6, M44A3 SERIES TRUCKS (DIESEL) M35A3, W/O WINCH (NSN 2320-01-383-2047); W/WINCH (NSN 2320-01-383-3850); M35A3C, W/O WINCH (NSN 2320-01-383-2050); W/WINCH (NSN 2320-01-383-2049); M36A3, W/O WINCH (NSN 2320-01-383-2048); W/WINCH (NSN 2320-01-383-2046).