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LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Doc Ock's Hideout

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4856 Doc Ock's Hideout

445 pieces in 121 part and color combinations, plus 5 minifigures.

The official piece count includes the 41 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates 68 pieces

  • Plate 1 x 4 Black Part 3710 Element 371026 Also in Dark Bluish Gray ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×6
  • Plate 6 x 6 Blue Part 3958 Element 4199519 or 395823 ×1
  • Plate 1 x 2 Dark Bluish Gray Part 3023 Element 4211063 ×11
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 Also in Black ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 ×8
  • Plate 2 x 12 Dark Bluish Gray Part 2445 Element 4211067 ×2
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×1
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 ×4
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×12
  • Plate 4 x 8 Dark Bluish Gray Part 3035 Element 4211061 ×2
  • Plate 6 x 8 Dark Bluish Gray Part 3036 Element 4210794 ×2
  • Plate 8 x 8 Dark Bluish Gray Part 41539 Element 4210802 ×4
  • Plate 2 x 10 Light Bluish Gray Part 3832 Element 4211462 ×2
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 1 x 8 Reddish Brown Part 3460 Element 4216945 ×2
  • Plate 2 x 10 Reddish Brown Part 3832 Element 4211214 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×6

Bricks 51 pieces

  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×4
  • Brick 1 x 16 Light Bluish Gray Part 2465 Element 4211366 ×1
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×7
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×2
  • Brick 2 x 10 Light Bluish Gray Part 3006 Element 4617862 or 4211390 ×1
  • Brick 2 x 2 Light Bluish Gray Part 3003 Element 4211387 ×12
  • Brick 2 x 2 Corner Light Bluish Gray Part 2357 Element 4211349 ×2
  • Brick 2 x 2 x 3 Light Bluish Gray Part 30145 Element 4211650 ×6
  • Brick 1 x 1 x 5 with Blocked Open or Hollow Stud Reddish Brown Part 2453a ×4
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×2
  • Brick 1 x 6 Reddish Brown Part 3009 Element 4211193 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×4

Bricks Special 51 pieces

  • Brick Special 1 x 1 Studs on 4 Sides Black Part 4733 Element 473326 ×1
  • Brick Special 1 x 2 with Handle Black Part 30236 Element 4288212 or 4113243 ×8
  • Brick Special 1 x 2 with Pin Light Bluish Gray Part 2458 Element 4211364 ×2
  • Slope Inverted 45° 4 x 2 Double with Pins and Axle Hole Type 2 [X Opening] Light Bluish Gray Part 30390b Element 6052373 or 4211633 ×1
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×27
  • Brick Special 1 x 4 Palisade [aka Log] Reddish Brown Part 30137 Element 4211181 ×11
  • Brick Special 1 x 2 with Grille Yellow Part 2877 Element 287724 ×1

Bricks Round and Cones 45 pieces

  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×1
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Dark Bluish Gray Part 3063b Element 4497192 or 4280146 ×4
  • Cone 1 x 1 [No Top Groove] Light Bluish Gray Part 4589 Element 4518652 or 4211499 ×4
  • Brick Round 2 x 2 with Axle Hole Reddish Brown Part 3941 Element 4211166 ×32
  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 ×1
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×1
  • Cone 2 x 2 x 2, Open Stud Yellow Part 3942c Element 6055404 or 6022159 ×1

Bricks Sloped 30 pieces

  • Brick Sloped 45° 2 x 2 Dark Bluish Gray Part 3039 Element 4211054 ×2
  • Brick Sloped 33° 3 x 1 Light Bluish Gray Part 4286 Element 4211488 ×4
  • Brick Sloped 33° 3 x 2 Light Bluish Gray Part 3298 Element 4211421 ×8
  • Brick Sloped 45° 2 x 1 Double with Ovoid Bottom Pin Light Bluish Gray Part 3044b ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Light Bluish Gray Part 3747b Element 4211570 ×2
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper Light Bluish Gray Part 4287b ×2
  • Brick Sloped Inverted 45° 2 x 1 Light Bluish Gray Part 3665 Element 4211437 ×4
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Light Bluish Gray Part 3660 Element 4211436 ×2
  • Brick Sloped Inverted 45° 2 x 1 Reddish Brown Part 3665 Element 4211222 ×4

Tiles Special 22 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×3
  • Tile Special 1 x 2 with Handle Light Bluish Gray Part 2432 Element 4211357 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Reddish Brown Part 2412b Element 4224243 ×8
  • Tile Special 1 x 2 Grille with Bottom Groove Yellow Part 2412b Element 241224 ×10

Plates Special 20 pieces

  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Black Part 3794a ×8
  • Plate Special 2 x 2 with 2 Pin Holes Black Part 2817 Element 281726 ×1
  • Plate Special 2 x 2 with Bar Frame Square Black Part 30094 Element 4228161 or 4118712 ×1
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×1
  • Plate Special 1 x 2 Side Handle [Free Ends] Dark Bluish Gray Part 2540 Element 4210660 ×2
  • Plate Special 2 x 2 with 1 Pin Hole [Split Underside Ribs] Light Bluish Gray Part 2444 Element 4211359 or 2444194 ×4
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Reddish Brown Part 4623 Element 4519909 or 4225162 ×2
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] White Part 3839b Element 6619286 or 383901 ×1

Tiles 20 pieces

  • Tile 1 x 2 with Groove Dark Bluish Gray Part 3069b Element 4211052 ×3
  • Tile 1 x 8 with Groove Dark Bluish Gray Part 4162 Element 5210651 or 4211008 ×12
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×3
  • Tile 1 x 1 with Groove Yellow Part 3070b Element 307024 1 spare in the box ×2

Technic Pins 18 pieces

  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Black Part 6558 Element 655826 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×10
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×4

Technic Connectors 17 pieces

  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Black Part 6553 Element 4107765 or 655326 ×4
  • Technic Axle and Pin Connector Angled #4 - 135° Black Part 32192 Element 6262897 or 4121610 ×4
  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Black Part 32530 Element 4144024 ×8
  • Technic Axle Connector Hub with 4 Bars at 90° Light Bluish Gray Part 48723 Element 4222043 ×1

Windows and Doors 14 pieces

  • Window 1 x 4 x 5 with Hollow Studs Light Bluish Gray Part 2493b Element 4493498 or 4211734 ×7
  • Glass for Window 1 x 4 x 5 Trans-Brown Part 2494 Element 4198459 ×7

Plates Round Curved and Dishes 13 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×3
  • Dish 6 x 6 Inverted, Radar / Webbed [Anti-studs at 90°] Dark Bluish Gray Part 4285b Element 4224253 ×1
  • Plate Round Corner 4 x 4 Dark Bluish Gray Part 30565 Element 4222042 ×4
  • Dish 4 x 4 Inverted [Radar] with Swirl Electrical Print Trans-Purple Part 3960pr9975 Element 4172363 ×2
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 1 spare in the box ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] White Part 2654 Element 6601843 or 6552259 ×2

Technic Beams 12 pieces

  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×4
  • Technic Beam 1 x 7 Bent (4 - 4) Thick Blue Part 32348 Element 6345498 or 6302340 ×8

Technic Axles 10 pieces

  • Technic Axle 6 Black Part 3706 Element 370626 ×1
  • Technic Axle 3 Light Bluish Gray Part 4519 Element 4211815 ×8
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×1

Bars, Ladders and Fences 8 pieces

  • Bar 7 x 3 with Double Clips (Ladder) [Straight Clips] Black Part 6020 Element 602026 ×1
  • Fence Lattice 1 x 4 x 1 Black Part 3633 Element 4187209 or 363326 ×2
  • Lever Small Base with Black Lever Blue Part 298c02 Element 4296152 or 4163988 1 spare in the box ×1
  • Bar 1L with Clip Dark Bluish Gray Part 48729a Element 4222196 1 spare in the box ×4

Bricks Curved 4 pieces

  • Brick Arch 1 x 6 Light Bluish Gray Part 3455 Element 4211424 ×1
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Reddish Brown Part 3307 Element 4226018 ×3

Minifig Upper Body 4 pieces

  • Torso Mechanical, Battle Droid Yellow Part 30375 Element 6449913 or 4521511 ×4

Supports, Girders and Cranes 4 pieces

  • Support Round 2 x 2 x 2 Stand with Reach-Through Center Hole Dark Bluish Gray Part 3940b Element 4211110 ×4

Technic Bricks 4 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Reddish Brown Part 3700 Element 4211252 ×4

Tiles Round and Curved 4 pieces

  • Tile Round 2 x 2 with Bottom Cross Black Part 4150 Element 415076 or 415026 ×4

Energy Effects 3 pieces

  • Wave / Flame Rounded with Base Pegs Trans-Purple Part 6126a ×3

Minifig Accessories 3 pieces

  • Equipment Camera Handheld with Right-Aligned Viewfinder Black Part 30089a ×1
  • Equipment Flotation Ring [Life Preserver] Black Part 30340 Element 6097072 or 4203611 ×2

Technic Gears 3 pieces

  • Technic Gear 12 Tooth Bevel Light Bluish Gray Part 6589 Element 6589194 or 4565450 ×3

Animals / Creatures 2 pieces

  • Animal, Rodent, Rat / Mouse [Plain] Dark Bluish Gray Part 40234 Element 4210730 ×1
  • Insect, Spider Trans-Dark Blue Part 30238 Element 4206907 or 4120134 ×1

Bricks Wedged 2 pieces

  • Brick Wedged, Curved Inverted 6 x 4 Yellow Part 43713 Element 6212206 or 6078439 ×2

Hinges, Arms and Turntables 2 pieces

  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×1

Plates Wedged 2 pieces

  • Wedge Plate 4 x 4 with 2 x 2 Cutout Black Part 43719 Element 6275401 or 4561035 ×2

Animal / Creature Accessories 1 piece

  • Insect Accessory, Spider Web White Part 30240 Element 4295038 or 4164212 ×1

Baseplates 1 piece

  • Baseplate 32 x 32 Blue Part 3811 Element 4219691 or 381123 ×1

Stickers 1 piece

  • Sticker Sheet for Set 4856-1 [No Color/Any Color] Part 50252 Element 4226996 ×1

String, Bands and Reels 1 piece

  • String with End Studs and Minifig Grips 21L White Part 14210 Element 6096959 or 6037448 ×1

Technic Bushes 1 piece

  • Technic Bush 1/2 Smooth with Axle Hole Reduced Light Bluish Gray Part 32123a 1 spare in the box ×1

Technic Special 1 piece

  • Gearbox 4 x 4 x 1 2/3 with 1 x 2 Cutouts, Pin Holes Black Part 6585 Element 6169982 or 4500902 ×1

Transportation - Land 1 piece

  • Steering Stand 1 x 2 with Black Steering Wheel Light Bluish Gray Part 3829c01 Element 4226995 ×1

Transportation - Sea and Air 1 piece

  • Tail Shuttle - Small Yellow Part 44661 Element 6551142 or 6253366 ×1

Windscreens and Fuselage 1 piece

  • Windscreen 4 x 4 x 1 Trans-Brown Part 6238 Element 6238111 or 6030985 ×1

Minifigures 5 figures

  • Spider-Man with Dark Blue Arms and Legs Minifigure, checked as a whole figure ×1
  • Peter Parker in Sand Blue Vest Over Black Jacket with Zipper Minifigure, checked as a whole figure ×1
  • Mary Jane in Medium Blue Sweater Minifigure, checked as a whole figure ×1
  • Harry Osborn in Dark Blue Suit Minifigure, checked as a whole figure ×1
  • Dr. Octopus / Doc Ock with Green Glasses and Sand Green Suit Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

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