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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.

Neptune Discovery Lab

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6195 Neptune Discovery Lab

489 pieces in 171 part and color combinations, plus 4 minifigures.

LEGO counts 508 pieces. This inventory comes from a separate parts catalog and lists 509, including the 20 parts inside the minifigures; the two do not always count the same elements, so their totals differ. 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.

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Piece checklist

Black 220 pieces

  • Animal, Octopus [Plain] Black Part 6086 Element 6096092 or 4273962 ×1
  • Arm Grab Jaw Black Part 4221 Element 422126 ×2
  • Arm Holder Brick 1 x 2 with 2 Horizontal Fingers Black Part 30014 Element 3001426 ×2
  • Arm Piece Straight with 2 and 3 Fingers Black Part 3612 Element 610126 ×2
  • Bar 1 x 3 [Clip / Anti-Stud] Black Part 4735 Element 4141580 or 473576 ×2
  • Bar 1 x 6 [Closed Studs] Black Part 6140 Element 6415609 or 614026 ×1
  • Bar 7 x 3 with Double Clips (Ladder) [Straight Clips] Black Part 6020 Element 602026 ×1
  • Bracket 5 x 2 x 2 1/3 with Holes, Smooth Bottom Black Part 6087 Element 4100423 or 608726 ×1
  • Brick 1 x 2 Black Part 3004 Element 300426 ×4
  • Brick 1 x 4 Black Part 3010 Element 301026 ×6
  • Brick 1 x 6 Black Part 3009 Element 300926 ×1
  • Brick 1 x 8 Black Part 3008 Element 300826 ×1
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×3
  • Brick 2 x 2 Corner Black Part 2357 Element 235776 or 235726 ×1
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×1
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×1
  • Brick Sloped 33° 3 x 3 Black Part 4161 Element 416126 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×3
  • Brick Sloped 45° 2 x 1 with Bottom pin, with 3 Red Lamps, 3 Yellow Buttons, Yellow Border Print Black Part 3040bpr0008 Element 4121976 or 81149 ×1
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1
  • Brick Sloped 75° 2 x 1 x 3 with Open Stud Black Part 4460a ×4
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×4
  • Brick Sloped Inverted 75° 2 x 1 x 3 Black Part 2449 Element 4636202 or 4561789 ×1
  • Brick Special 1 x 1 with Headlight Black Part 4070 Element 407026 ×2
  • Equipment Compass with White Lines, Yellow Letters Print Black Part 70001pr0001 Element 75171 ×1
  • Fence Lattice 1 x 4 x 1 Black Part 3633 Element 4187209 or 363326 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×3
  • Hinge Tile 1 x 4 Black Part 4625 Element 4280138 or 462526 ×5
  • Hinge Vehicle Roof 4 x 4 Black Part 4213 Element 421326 ×4
  • Hinge Vehicle Roof Holder 1 x 4 Black Part 4315 Element 4250225 or 431576 ×3
  • Magnet Cylindrical Black Part 73092 Element 73092 ×3
  • Magnet Holder 2 x 3 Black Part 2607 Element 260726 ×1
  • Magnet Holder Tile 2 x 2 - Short Arms Black Part 2609a Element 4111912 or 260926 ×2
  • Panel 1 x 2 x 1 [Square Corners] Black Part 4865a Element 486526 ×3
  • Plate 1 x 2 Black Part 3023 Element 302326 ×15
  • Plate 1 x 4 Black Part 3710 Element 371026 ×5
  • Plate 2 x 16 Black Part 4282 Element 428276 or 428226 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×6
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×5
  • Plate 2 x 3 Black Part 3021 Element 302126 ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×8
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 4 x 4 Black Part 3031 Element 4243819 or 303126 ×1
  • Plate 4 x 4 Corner Black Part 2639 Element 6483102 or 4226683 ×2
  • Plate 4 x 6 Black Part 3032 Element 303226 ×3
  • Plate 4 x 8 Black Part 3035 Element 303526 ×2
  • Plate 6 x 12 Black Part 3028 Element 302826 ×1
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Black Part 2654 Element 4617551 or 4278359 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Black Part 6019 Element 601976 or 601926 ×5
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×7
  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×4
  • Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Black Part 3839b Element 383926 ×3
  • Plate Special 1 x 4 Offset with Bar Holes Black Part 4590 Element 6002559 or 4278029 ×1
  • Plate Special 2 x 5 with Towball Socket Black Part 3491 ×1
  • Technic Axle 2 Black Part 3704 Element 370426 ×1
  • Technic Axle 3 Black Part 4519 Element 6238084 or 451926 ×1
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Axle 6 Black Part 3706 Element 370626 ×3
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Black Part 3702 Element 370226 ×2
  • Technic Link Black Part 3711a Element 371126 2 spares in the box ×23
  • Technic Slope Long 1 x 6 with 3 Pin Holes Black Part 2744 Element 6311889 or 274426 ×2
  • Tile 1 x 1 with Groove Black Part 3070b Element 307026 1 spare in the box ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×3
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×11
  • Turntable 4 x 4 Square Base Black Part 3403 Element 340326 ×1
  • Turntable 4 x 4 Top Black Part 3404 Element 4221659 or 340426 ×1
  • Wedge Plate 3 x 3 Cut Corner Black Part 2450 Element 4227684 or 245026 ×3
  • Wedge Plate 3 x 4 without Stud Notches Black Part 4859 ×1
  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×2

Yellow 192 pieces

  • Arm Grab Jaw Holder, 3 Fingers Yellow Part 4220 Element 4107528 or 422024 ×1
  • Arm Piece Straight with 2 and 3 Fingers Yellow Part 3612 Element 610124 ×6
  • Arm Piece with Pin, 3 Fingers Yellow Part 6217 Element 604724 ×1
  • Bar 9 x 13 Grille Yellow Part 6046 Element 604624 ×1
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×9
  • Brick 1 x 16 Yellow Part 2465 Element 4264963 or 246524 ×4
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×13
  • Brick 1 x 3 Yellow Part 3622 Element 362224 ×4
  • Brick 1 x 4 Yellow Part 3010 Element 301024 ×5
  • Brick 1 x 8 Yellow Part 3008 Element 300824 ×1
  • Brick 2 x 10 Yellow Part 3006 Element 6119276 or 6073100 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×3
  • Brick 2 x 2 Corner Yellow Part 2357 Element 235774 or 235724 ×1
  • Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside Yellow Part 3307 Element 330724 ×1
  • Brick Round 1 x 1 Open Stud Yellow Part 3062b Element 306844 or 306224 ×13
  • Brick Sloped 33° 3 x 1 Yellow Part 4286 Element 428624 ×4
  • Brick Sloped 33° 3 x 4 Yellow Part 3297 Element 6256980 or 6088712 ×1
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2
  • Brick Sloped 45° 2 x 2 with Grid Screen, Shark, and Controls on Red Panel Print (Aquazone) Yellow Part 3039pr9980 Element 81821 ×2
  • Brick Sloped 45° 2 x 4 Yellow Part 3037 Element 4219911 or 303724 ×2
  • Brick Sloped 45° 2 x 8 Yellow Part 4445 Element 4264364 or 4258384 ×2
  • Brick Sloped 53° 3 x 1 x 3 1/3 with Studs on Slope Yellow Part 6044 Element 604424 ×2
  • Brick Sloped Inverted 45° 2 x 1 Yellow Part 3665 Element 366524 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Yellow Part 3660 Element 366024 ×3
  • Brick Special 2 x 2 with Pin and Axle Hole Yellow Part 6232 Element 6347698 or 623224 ×2
  • Brick Special 2 x 4 x 2 with Studs on Sides Yellow Part 2434 Element 243424 ×1
  • Brick Special Octagonal 2 x 2 x 3 1/3 Yellow Part 6037 Element 4247859 or 603724 ×11
  • Brick Special Octagonal 2 x 2 x 3 1/3 Corner Yellow Part 6043 Element 4247840 or 604324 ×7
  • Brick Special Octagonal 2 x 2 x 3 1/3 with Side Studs Yellow Part 6042 Element 4247901 or 604224 ×6
  • Brick Special Octagonal 2 x 3 x 1 2/3 Sloped Yellow Part 6032 Element 4247914 or 603224 ×6
  • Cockpit 10 x 10 x 4 Octagonal Yellow Part 2618 Element 261824 ×1
  • Cone 2 x 2 x 1 2/3 Octagonal, Open Stud Yellow Part 6039 Element 4247936 or 4105159 ×8
  • Door Frame 2 x 8 x 12 with Hinges Yellow Part 2662 Element 266224 ×2
  • Flag 2 x 2 Square [Thin Clips] Yellow Part 2335 Element 4523409 or 233574 ×2
  • Hinge Brick 1 x 2 Base Yellow Part 3937 Element 393724 ×1
  • Hinge Panel 2 x 4 x 3 1/3 with Yellow Submarine Print Yellow Part 2582pr0006 Element 81833 ×2
  • Hinge Vehicle Roof Holder 1 x 4 Yellow Part 4315 Element 4253788 or 4239251 ×1
  • Panel 1 x 2 x 1 [Square Corners] Yellow Part 4865a Element 486524 ×1
  • Panel 3 x 3 x 6 Corner Wall Yellow Part 2345 Element 234524 ×1
  • Plate 1 x 1 Yellow Part 3024 Element 302424 1 spare in the box ×2
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×5
  • Plate 1 x 3 Yellow Part 3623 Element 362324 ×3
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×1
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×1
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 2 Corner Yellow Part 2420 Element 242074 or 242024 ×1
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2
  • Plate 2 x 6 Yellow Part 3795 Element 379524 ×3
  • Plate 2 x 8 Yellow Part 3034 Element 303424 ×3
  • Plate 4 x 6 Yellow Part 3032 Element 303224 ×1
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Yellow Part 4623 Element 4501109 or 4497185 ×1
  • Plate Special 10 x 10 Octagonal Opening Yellow Part 6063 Element 6264055 or 606324 ×1
  • Plate Special 2 x 2 with Towball Yellow Part 3729 Element 372924 ×1
  • Plate Special 2 x 2 with Towball Socket, Short, 4 Slots Yellow Part 3730 Element 373024 ×1
  • Propeller Housing Yellow Part 6040 Element 604024 ×1
  • Steering Stand 1 x 2 with Black Steering Wheel Yellow Part 3829c01 Element 9553 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×7
  • Tile 1 x 1 with Red and Black Buttons Print Yellow Part 3070bpr0031 Element 81183 1 spare in the box ×1
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2
  • Tile 1 x 2 with Long Black Arrow Print Yellow Part 3069bpr0035 Element 81148 ×4
  • Tile 1 x 2 with Underwater Navigation Print Yellow Part 3069bpr0093 Element 81819 ×2
  • Tile Round 2 x 2 with Black Background, Yellow Submarine Print Yellow Part 4150pr0029 Element 81824 ×1
  • Tile Special 1 x 2 Grille without Bottom Groove Yellow Part 2412a ×1
  • Tile Special 1 x 2 with Handle Yellow Part 2432 Element 243224 ×3
  • Tile Special 2 x 2 with Top Pin Yellow Part 2460 Element 246024 ×2

Trans-Neon Orange 23 pieces

  • Antenna 8H Whip Trans-Neon Orange Part 2569 Element 6164384 or 6124861 ×2
  • Arm Piece 90° Turn [2 / 3 Fingers] Trans-Neon Orange Part 412 Element 3001547 ×4
  • Box 2 x 2 x 2 Door with Slot Trans-Neon Orange Part 4346 Element 3005947 ×2
  • Box 2 x 2 x 2 [Hollow Studs] Trans-Neon Orange Part 4345b Element 3006047 ×2
  • Brick Special 1 x 1 with Headlight Trans-Neon Orange Part 4070 Element 3006947 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Neon Orange Part 6141 Element 6240218 or 3005747 1 spare in the box ×2
  • Propeller 3 Blade 3 Diameter with Axle Cross Trans-Neon Orange Part 6041 Element 4165521 or 604147 ×8

Light Gray 14 pieces

  • Minifig Hose Nozzle Simple with 13L Black String Light Gray Part 194c04 Element 4105188 ×1
  • Technic Axle Pin without Friction Ridges Lengthwise Light Gray Part 3749 Element 4184168 or 4154179 ×4
  • Technic Bush Light Gray Part 3713 Element 4125313 or 659002 1 spare in the box ×1
  • Technic Bush 1/2 Toothed Type II [X Opening] Light Gray Part 4265b Element 4100501 or 657702 1 spare in the box ×1
  • Technic Engine Crankshaft Center Light Gray Part 2854 Element 285402 ×2
  • Technic Gear 16 Tooth with Round Holes [Old Style] Light Gray Part 4019 Element 4107176 or 401902 ×3
  • Technic Pin without Friction Ridges Lengthwise Light Gray Part 3673 Element 4184166 or 367302 ×2

Trans-Dark Blue 13 pieces

  • Cockpit 5 x 8 x 3 (Windscreen Bottom) Trans-Dark Blue Part 6085 Element 608543 ×1
  • Crane Bucket [Complete Assembly] Trans-Dark Blue Part 3492c01 Element 4100546 ×1
  • Door 1 x 9 x 11 with Clips Trans-Dark Blue Part 2596 Element 259643 ×2
  • Hinge Panel 2 x 4 x 3 1/3 Trans-Dark Blue Part 2582 Element 613943 ×2
  • Panel 1 x 2 x 2 [Solid Studs] Trans-Dark Blue Part 4864a ×2
  • Panel 10 x 6 x 11 Trans-Dark Blue Part 2408 Element 240843 ×2
  • Windscreen 10 x 10 x 4 Octagonal Canopy Trans-Dark Blue Part 2598 Element 259843 ×1
  • Windscreen 6 x 6 Octagonal Canopy with Axle hole Trans-Dark Blue Part 2418b Element 241843 ×1
  • Windscreen 8 x 3 1/2 x 4 1/6 Half Octagon Aquanaut Sub Top Trans-Dark Blue Part 6084 Element 608443 ×1

Chrome Silver 11 pieces

  • Rock 1 x 1 Crystal 5 Point Chrome Silver Part 30385 Element 4119342 ×3
  • Weapon Dagger / Knife Chrome Silver Part 37 Element 70749 ×4
  • Weapon Harpoon [4 Grooves on Shaft] Chrome Silver Part 57467 ×4

Blue 8 pieces

  • Minifig Footwear Flipper [Thin] Blue Part 59275 ×8

Green 3 pieces

  • Plant, Bush 2 x 2 x 4 Green Part 6064 Element 6269009 or 606428 ×2
  • Plant, Prickly Bush 2 x 2 x 3 Extension with 2 x 2 center Green Part 6065 Element 606528 ×1

Red 3 pieces

  • Hinge Brick 2 x 2 Top Plate Thin Red Part 6134 Element 613421 ×1
  • Plant, Prickly Bush 2 x 2 x 3 Extension with 2 x 2 center Red Part 6065 Element 606521 ×2

Light Blue 2 pieces

  • Baseplate Raised 32 x 32 Canyon with Blue Underwater Print Light Blue Part 6024pr0001 Element 613800 ×2

Minifigures 4 figures

  • Aquanaut 2 Minifigure, checked as a whole figure ×2
  • Aquanaut 1 Minifigure, checked as a whole figure ×1
  • Aquanaut 3 Minifigure, checked as a whole figure ×1

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

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

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