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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.

Space Science Lab

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60439 Space Science Lab

545 pieces in 178 part and color combinations, plus 3 minifigures.

The official piece count includes the 15 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

White 164 pieces

  • Bracket 1 x 1 - 1 x 2 Inverted White Part 73825 Element 6548292 or 6337079 ×6
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×7
  • Brick 1 x 1 x 3 White Part 14716 Element 6548277 or 6055541 ×3
  • Brick 1 x 1 x 5 with Solid Stud White Part 2453b Element 6550132 or 245301 ×2
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×11
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×2
  • Brick 1 x 2 x 3 with Bottom Stud Holder White Part 22886 Element 6548283 or 6153776 ×7
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×3
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×3
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×1
  • Brick Curved 1 x 4 x 2/3 Double, No Studs White Part 79756 Element 6564915 or 6378416 ×3
  • Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×2
  • Brick Curved 4 x 1 Double, No Studs White Part 93273 Element 6552143 or 6023806 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 White Part 85984 Element 6550189 or 4547489 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud White Part 28192 Element 6552164 or 6166894 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×2
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud White Part 4460b Element 6552112 or 446001 ×6
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2
  • Brick Sloped Inverted 45° 2 x 2 [Round Hollow Bottom Pin, Bar-sized Stud Holes] White Part 76959 Element 6552189 or 6366391 ×2
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] White Part 60475b Element 6321349 or 4533763 ×3
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side White Part 32952 Element 6552171 or 6548288 ×15
  • Brick Special 1 x 1 x 3 with 2 Clips Vertical [Hollow Stud, Open O Clips] White Part 60583b Element 6320355 or 4563684 ×2
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×4
  • Cylinder Quarter 2 x 2 x 5 (Wall) White Part 30987 Element 6343076 ×4
  • Dish 4 x 4 Inverted [Radar] White Part 3960 Element 396001 ×1
  • Equipment Cup / Mug [Plain] White Part 3899 Element 4659665 or 4548546 ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×7
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×2
  • Plate 1 x 12 White Part 60479 Element 6552130 or 6548269 ×2
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×19
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×1
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×2
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×2
  • Plate Round Corner 3 x 3 White Part 30357 Element 6550165 or 4550745 ×4
  • Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs White Part 66789 Element 6475043 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] White Part 61252 Element 6347293 or 4538353 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs White Part 35480 Element 6552167 or 6550175 ×4
  • Plate Special 1 x 3 Rounded with 3 Open Studs White Part 77850 Element 6550184 or 6450820 ×3
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin White Part 32064a Element 6548286 or 6178921 ×2
  • Tile 1 x 1 with Groove White Part 3070b Element 6550138 or 307001 1 spare in the box ×2
  • Tile 1 x 2 with Battery, Graph Print White Part 3069bpr0396 Element 6465630 ×2
  • Tile 1 x 4 with Groove White Part 2431 Element 6548255 or 243101 ×2
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×1
  • Tile 2 x 2 with Modern Classic Space Logo Print White Part 3068bpr0699 Element 6465626 ×1
  • Tile Round 1 x 1 Half Circle White Part 24246 Element 6609539 or 6250591 1 spare in the box ×3
  • Tile Round 1 x 1 with Battery Print White Part 98138pr0380 Element 6465627 1 spare in the box ×1

Black 84 pieces

  • Animal Body Part / Plant, Tail / Trunk / Tentacle / Tongue / Vine / Tree Branch (Long Tip) Black Part 80497 Element 6382249 ×3
  • Bracket 1 x 2 - 2 x 2 Inverted Black Part 99207 Element 6000650 ×1
  • Brick 1 x 2 Black Part 3004 Element 300426 ×2
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×2
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×5
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×1
  • Brick Sloped 45° 2 x 1 with 2/3 Inverted Cutout and no stud Black Part 28192 Element 6267487 ×2
  • Brick Special 1 x 4 with Groove Black Part 2653 Element 265326 ×4
  • Cupboard 2 x 3 x 2 with Hollow Studs Black Part 92410 Element 6138479 ×1
  • Door Frame 1 x 4 x 4, no Holes Black Part 40527 Element 6254519 ×2
  • Door Frame 1 x 4 x 6 Type 2 Black Part 60596 Element 6337273 or 4535834 ×1
  • Panel 1 x 3 x 1 Black Part 23950 Element 6382491 ×2
  • Plate 1 x 1 Black Part 3024 Element 302426 1 spare in the box Also in Dark Bluish Gray ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×2
  • Plate 1 x 6 Black Part 3666 Element 366626 Also in Dark Bluish Gray ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×3
  • Plate 2 x 2 Corner Black Part 2420 Element 242026 ×4
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 4 x 8 Black Part 3035 Element 303526 ×1
  • Plate 6 x 6 Black Part 3958 Element 395826 ×1
  • Plate Round 4 x 4 with Pin Hole Black Part 60474 Element 4515350 ×4
  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Black Part 60478 Element 4515368 ×2
  • Plate Special 1 x 2, Top Clip [Open O] Black Part 44861 Element 6347310 ×10
  • Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle Black Part 18651 Element 6089119 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×2
  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×1
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×5
  • Tile 45° Cut 2 x 2 (Triangle) Black Part 35787 Element 6214807 ×8
  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×1

Dark Bluish Gray 73 pieces

  • Arm Skeleton [Bent / 2 Clips] Dark Bluish Gray Part 93609 Element 6318697 or 6167900 ×2
  • Brick 1 x 1 Dark Bluish Gray Part 3005 Element 4211098 ×1
  • Brick 1 x 4 Dark Bluish Gray Part 3010 Element 4211103 ×1
  • Brick 1 x 6 Dark Bluish Gray Part 3009 Element 4211100 ×4
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Bluish Gray Part 6091 Element 6411327 or 4210797 ×1
  • Brick Curved Inverted 2 x 2 with 1 x 2 Cutouts Dark Bluish Gray Part 1750 Element 6445057 ×6
  • Brick Special 1 x 2 Palisade [aka Log] Dark Bluish Gray Part 30136 Element 4211095 ×4
  • Brick Special 1 x 2 Rounded with Center Bars Dark Bluish Gray Part 77808 Element 6510213 or 6390673 ×7
  • Equipment Medical Wheelchair with Pins for Wheels [Minifig] Dark Bluish Gray Part 80440 Element 6432265 ×1
  • Plate 1 x 1 Dark Bluish Gray Part 3024 Element 4210719 1 spare in the box Also in Black ×4
  • Plate 1 x 4 Dark Bluish Gray Part 3710 Element 4211001 ×1
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 Also in Black ×1
  • Plate 2 x 10 Dark Bluish Gray Part 3832 Element 4210678 ×2
  • Plate 2 x 16 Dark Bluish Gray Part 4282 Element 4210796 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×5
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×4
  • Plate Special 1 x 2 Rounded with 2 Open Studs Dark Bluish Gray Part 35480 Element 6221607 ×7
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Dark Bluish Gray Part 88072 Element 6261355 or 4611703 ×1
  • Plate Special 1 x 2 with Clip Horizontal on End Dark Bluish Gray Part 63868 Element 6336990 or 4581225 ×1
  • Plate Special 1 x 8 with Door Rail Dark Bluish Gray Part 4510 Element 4210967 ×2
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Dark Bluish Gray Part 18674 Element 6115080 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×2
  • Tile Special Round 1 x 1 with Hollow Bar Dark Bluish Gray Part 20482 Element 6271752 1 spare in the box ×1
  • Wedge Plate 2 x 2 Cut Corner Dark Bluish Gray Part 26601 Element 6164073 ×12

Light Bluish Gray 43 pieces

  • Brick Curved 2 x 2 x 2/3 Light Bluish Gray Part 15068 Element 6102357 ×1
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×8
  • Brick Special 1 x 4 with 4 Studs on One Side Light Bluish Gray Part 30414 Element 4211636 ×1
  • Equipment Binoculars Light Bluish Gray Part 30162 Element 4550170 or 4212313 ×1
  • Hinge Brick 1 x 2 Locking with 2 Fingers Vertical End, 7 teeth Light Bluish Gray Part 54671 Element 6267142 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×1
  • Plate Round 1 x 1 with Open Stud Light Bluish Gray Part 85861 Element 6168647 or 6124825 1 spare in the box ×2
  • Plate Special 1 x 1 Rounded with Handle Light Bluish Gray Part 26047 Element 6225246 ×1
  • Plate Special 1 x 2 with Clip Vertical on End Light Bluish Gray Part 78256 Element 6354568 ×3
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Light Bluish Gray Part 32828 Element 6227897 1 spare in the box ×1
  • Plate Special Round 1 x 2 Half Circle with Stud (Jumper) Light Bluish Gray Part 1745 Element 6510058 or 6420741 ×11
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×2
  • Tile 1 x 1 with Keypad, Blue Slit, Red Button Print Light Bluish Gray Part 3070bpr0234 Element 6329583 1 spare in the box ×1
  • Tile 45° Cut 2 x 2 (Triangle) Light Bluish Gray Part 35787 Element 6217876 ×8

Sand Blue 43 pieces

  • Brick Sloped 45° 2 x 1 with Bottom Pin Sand Blue Part 3040b Element 6212055 or 4168633 ×8
  • Plate 1 x 2 Sand Blue Part 3023 Element 6198156 or 4167468 ×2
  • Plate 1 x 3 Sand Blue Part 3623 Element 6142245 or 4153606 ×4
  • Tile 1 x 1 with Groove Sand Blue Part 3070b Element 6138232 or 4173698 2 spares in the box ×8
  • Tile 1 x 2 with Groove Sand Blue Part 3069b Element 6142505 or 4170251 ×2
  • Tile 1 x 3 Sand Blue Part 63864 Element 6262031 ×4
  • Tile 2 x 2 Curved, Macaroni Sand Blue Part 27925 Element 6480465 ×4
  • Tile Round 1 x 1 Quarter Sand Blue Part 25269 Element 6400305 1 spare in the box ×4
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Sand Blue Part 99563 Element 6372479 ×3
  • Tile Special 2 x 2 Corner with Cut Corner - Facet Sand Blue Part 27263 Element 6398674 ×4

Reddish Orange 24 pieces

  • Brick Special 1 x 6 x 4 with 4 Pin Holes and Opening Reddish Orange Part 49699 Element 6468285 ×3
  • Plate 1 x 2 Reddish Orange Part 3023 Element 6466720 ×14
  • Plate 1 x 4 Reddish Orange Part 3710 Element 6469089 ×2
  • Plate 1 x 8 Reddish Orange Part 3460 Element 6467485 ×2
  • Tile Round 1 x 1 Half Circle Reddish Orange Part 24246 Element 6493094 1 spare in the box ×3

Dark Orange 19 pieces

  • Brick 1 x 2 Dark Orange Part 3004 Element 4579659 or 4164441 ×2
  • Brick Arch 1 x 4 Dark Orange Part 3659 Element 6441766 or 6212897 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Dark Orange Part 3040b Element 6069259 or 4224730 ×2
  • Brick Sloped 45° 2 x 2 Dark Orange Part 3039 Element 6248859 or 6115261 ×1
  • Brick Sloped Inverted 75° 2 x 1 x 3 Dark Orange Part 2449 Element 6385969 ×6
  • Brick Special 1 x 1 with Stud on 1 Side Dark Orange Part 87087 Element 4666322 ×6

Dark Tan 13 pieces

  • Plate 1 x 1 Dark Tan Part 3024 Element 4549436 or 4497084 1 spare in the box ×2
  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×2
  • Plate 2 x 2 Dark Tan Part 3022 Element 6047415 or 4497081 ×4
  • Plate 2 x 3 Dark Tan Part 3021 Element 6035540 or 6015192 ×1
  • Plate 2 x 4 Dark Tan Part 3020 Element 4497077 or 4267874 ×2
  • Wedge Plate 3 x 6 Cut Corners Dark Tan Part 2419 Element 6035326 ×2

Trans-Black 10 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Trans-Black Part 87552 Element 6581816 or 6469858 ×6
  • Panel Curved, Quarter, with Bars at Each End Trans-Black Part 87375 Element 6514486 or 6480464 ×4

Trans-Orange 10 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×6
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 1 spare in the box ×4

Trans-Dark Pink 7 pieces

  • Brick 1 x 1 Trans-Dark Pink Part 3005 Element 6514211 or 6240553 ×2
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Trans-Dark Pink Part 22388 Element 6581706 or 6250590 1 spare in the box ×5

Trans-Light Blue 7 pieces

  • Book Cover with White HUD, Target, and Dark Blue Graphs Print Trans-Light Blue Part 24093pr0043 Element 6469015 ×1
  • Cupboard 2 x 3 x 2 Door Trans-Light Blue Part 4533 Element 6514073 or 6253216 ×1
  • Tile 1 x 1 with Groove Trans-Light Blue Part 3070b Element 6514261 or 6254256 1 spare in the box ×1
  • Tile Round 1 x 1 Trans-Light Blue Part 98138 Element 6514192 or 6274739 1 spare in the box ×4

Dark Purple 6 pieces

  • Plant, Plate 1 x 1 Round with 3 Leaves Dark Purple Part 32607 Element 6482646 ×6

Flat Silver 6 pieces

  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Flat Silver Part 61409 Element 6167922 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Flat Silver Part 2412b Element 4619636 ×3
  • Weapon Chakram / Hoop Blade / Ring Flat Silver Part 35485 Element 6207840 ×1

Light Aqua 6 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Light Aqua Part 24866 Element 6251854 1 spare in the box ×6

Opal Trans-Purple 6 pieces

  • Brick Round 1 x 1 Open Stud Opal Trans-Purple Part 3062b Element 6514240 or 6464814 ×5
  • Rock 1 x 1 Crystal 5 Point Opal Trans-Purple Part 30385 Element 6507866 or 6442192 ×1

Pearl Gold 6 pieces

  • Bar 4L (Lightsaber Blade / Wand) Pearl Gold Part 30374 Element 6147169 or 4600267 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Pearl Gold Part 15573 Element 6092594 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Pearl Gold Part 87580 Element 6186383 or 6107193 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Pearl Gold Part 2412b Element 4490599 ×1

Tan 4 pieces

  • Panel 1 x 2 x 1 with Rounded Corners and Central Divider Tan Part 93095 Element 6670646 or 6153157 ×1
  • Plate 2 x 6 Tan Part 3795 Element 4113993 or 379505 ×1
  • Plate Special 1 x 2 with Clip Vertical on End Tan Part 78256 Element 6372047 ×2

Trans-Purple 4 pieces

  • Brick Sloped 45° 2 x 2 Trans-Purple Part 3039 Element 6514102 or 6331105 ×3
  • Tile Round 1 x 1 Trans-Purple Part 98138 Element 6514201 or 6325432 1 spare in the box ×1

Magenta 3 pieces

  • Animal, Frog Magenta Part 33320 Element 6395622 ×3

Medium Lavender 3 pieces

  • Crown / Flower / Egg Shell Half Medium Lavender Part 39262 Element 6456640 ×3

Trans-Clear 2 pieces

  • Wheel Wheelchair with Pin Hole, Fixed Black Hard Rubber Tire Pattern Trans-Clear Part 80441pat0001 Element 6503251 or 6400773 1 spare in the box ×2

Dark Azure 1 piece

  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Dark Azure Part 87580 Element 6029163 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 60439-1 [No Color/Any Color] Part 10107618 Element 6480912 ×1

Minifigures 3 figures

  • Astronaut, White Spacesuit, Bright Green Helmet, Reddish Brown Sideburns Minifigure, checked as a whole figure ×1
  • Alien, Lime, Space Suit Minifigure, checked as a whole figure ×1
  • Astronaut, White and Dark Blue Spacesuit, Dark Azure Backpack, Dark Blue Helmet 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

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Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

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