Spitfire assembly numbers

  1 Top centre main planes 51 Chassis front
  2 Bottom centre main planes 52 Waterproof covers
  3 Top inner main planes 53 Wireless
  4 Bottom inner main planes 54 Service tank
  5 Target towing gear 55 Fin top
  6 Bottom inter main planes 56 Starter
  7 Top outer main planes 57 Bomb gear
  8 Bottom outer main planes 58 Towing gear
  9 Top inner aileron 59 Brake gear
10 Bottom inner aileron 60 Tail plane wing tip skid
11 Top outer aileron 61 Deck landing gear
12 Bottom outer aileron 62 Armament
13 Extension 63 Oxygen apparatus
14 Wing tip, skid or float 64 Equipment
15 Struts & external bracing 65 Petrol tank, auxiliary
16 Fin or King Post 66 Tail adjusting gear
17 Top tail plane 67 Radiator, auxiliary
18 Bottom tail plane 68 Dive brakes
19 Top elevators 69 Folding flap, bottom
20 Bottom elevators 70 Hoisting gear
21 Centre (or top) fin 71 Anti-icing
22 Outer (or bottom) fins 72 Fighting top
23 Centre rudders 73 Oil tank, auxiliary
24 Outer rudders 74 Floats
25 Tail plane struts & external bracing 75 Seaplane chassis
26 Tail skid 76 Trailing portion, top centre
27 Main fuselage or hull 77 Trial installation general arrangement drawings
28 Nose fuselage or hull  
29 Tail fuselage or hull 78 Trailing portion, top outer
30 Main fairing 79 Ground & servicing equipment
31 Nose fairing 80 Tail gunner's nacelle
32 Tail fairing 81 Torpedo gear
33 Controls 82 Engine brakes
34 Dashboard & instruments 83 Models
35 Flooring & seating 84 Test specimens
36 Electrical equipment 85 Gun turret
37 Engine mounting 86 Cabin heating
38 Engine cowling 87 Hydraulic system
39 Engine controls 88 Pneumatic system
40 Exhaust system 89 Accelerator [catapult] gear
41 Radiator 90 [Reserved]
42 Radiator shutters 91 [Reserved]
43 [Reserved] 92 Mould loft lines
44 Petrol tanks 93 Cases for shipment
45 Petrol system 94 Packing for shipment
46 Oil tanks 95 Mock-up
47 Oil system 96 Hull erecting cradle
48 Water tanks 97 [Reserved]
49 Water system 98 Final erection
50 Chassis [undercarriage] - main 99 Trial flights
    100 Miscellaneous spares