№ Part Number Description Part count in models 28 100-3522026 Ring 6,07x1,78 --1 0 100-3537010 Back action brake valve with hand control mechanism assembly --1 35 100-3537014 Cock body assembly --1 43 100-3537020 Housing --1 31 100-3537025 Ring --1 0 100-3537025 Ring (Unit/Part is not on the picture) --1 38 100-3537027 Stop --- 18 100-3537031 Guide cap --1 17 100-3537035 Rod --1 19 100-3537036 Washer --1 20 100-3537038 Spring --1 15 100-3537040 Guide --1 9 100-3537042 Spring plate --1 10 100-3537043 Washer --1 14 100-3537044 Ring 32.99x2.62 --2 3 100-3537046 Spring --1 13 100-3537048 Spring --1 12 100-3537050 Piston --1 2 100-3537052 Spring --1 6 100-3537054 Valve body --1 5 100-3537055 Ring 12.4x1.78 --1 11 100-3537056 Valve ring --1 4 100-3537057 Thrust washer --1 22 100-3537060 Cover --1 26 100-3537061 Washer --2 32 100-3537062 Roller --2 21 100-3537063 Handle --1 33 100-3537066 Guide --- 37 100-3537067 Bushing --- 29 100-3537068 Spring --- 34 100-3537091 Washer --- 36 100-3537092 Washer --- 41 100-3537093 Washer --- 42 100-3537094 Washer --- 7 100-3537095 Washer --- 8 100-3537097 Washer --- 27 302196 Screw --- 25 305887 Spring washer 4 --- 24 305905 Washer --- 30 484102 Pin --- 40 484103 Pin --- 23 484104 Pin --- 16 489301 Thrust ring --- 1 489302 Thrust ring --- 39 489326 Thrust ring ---