42221-1

NASA Artemis Space Launch System Rocket

Set number: 42221-1
Year: 2026
Theme: Technic
Parts: 632
Minifigures: 0

Building instructions

The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.

View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)

Parts list – 42221-1 NASA Artemis Space Launch System Rocket

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177 lines, 654 pieces

Parts list of set 42221-1
Part	Name	Colour	Quantity	Note
78258	Bar 2L with Stop in CenterBars, Ladders and Fences	Sand Green	1×
87994	Bar 3LBars, Ladders and Fences	Bright Green	2×
63965	Bar 6L with Stop RingBars, Ladders and Fences	White	1×
25214	Brick Round 1 x 1 Diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at Each EndBricks Round and Cones	Black	4×
3062b	Brick Round 1 x 1 Open StudBricks Round and Cones	White	2×
4588	Brick Round 1 x 1 with Fins, Open StudBricks Round and Cones	White	1×
3941	Brick Round 2 x 2 with Axle HoleBricks Round and Cones	White	12×
7654	Brick Round 2 x 2 x 3 D. Tube with Axle Holes (Crossholes) at Each End, Pin Holes In SidesBricks Round and Cones	White	6×
73111	Brick Round 3 x 3 x 2 Recessed Center with 2 x 2 Studs and Axle HoleBricks Round and Cones	White	1×
68013	Brick Round, Half 1 x 2Bricks Round and Cones	White	1×
59900	Cone 1 x 1 [Top Groove]Bricks Round and Cones	White	1×
49309	Cone 2 x 2 x 2 InvertedBricks Round and Cones	Black	1×
3942c	Cone 2 x 2 x 2, Open StudBricks Round and Cones	Black	2×
3942c	Cone 2 x 2 x 2, Open StudBricks Round and Cones	White	1×
3942cpr0005	Cone 2 x 2 x 2, Open Stud with Black Dots PrintBricks Round and Cones	White	2×
6233	Cone 3 x 3 x 2Bricks Round and Cones	White	3×
4742	Cone 4 x 4 x 2 Hollow No StudsBricks Round and Cones	Dark Orange	1×
24593	Cylinder Half 2 x 4 x 2 with 1 x 2 CutoutBricks Round and Cones	Dark Orange	2×
6126b	Wave / Flame Rounded with Base RimEnergy Effects	Trans-Orange	4×
37775	Wave / Flame Small with PinEnergy Effects	Trans-Light Blue	1×
64567	Weapon Lightsaber Hilt with Bottom RingMinifig Shields, Weapons, & Tools	Bright Light Orange	1×
90398pr0007	Minifig Trophy Statuette with Astronaut PrintMinifigs	White	4×
3023	Plate 1 x 2Plates	Black	1×
3022	Plate 2 x 2Plates	White	1×
4740	Dish 2 x 2 Inverted [Radar]Plates Round Curved and Dishes	Black	1×
4740	Dish 2 x 2 Inverted [Radar]Plates Round Curved and Dishes	White	2×
85861	Plate Round 1 x 1 with Open StudPlates Round Curved and Dishes	White	1×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	Black	16×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	Dark Bluish Gray	2×
4032a	Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)Plates Round Curved and Dishes	White	12×
60474	Plate Round 4 x 4 with Pin HolePlates Round Curved and Dishes	White	1×
77845	Plate Special 1 x 4 Rounded with 2 Open StudsPlates Round Curved and Dishes	Black	3×
10115267	Sticker Sheet for Set 42221-1Stickers	[No Color/Any Color]	1×
60169	Chain 16L [21 Links]String, Bands and Reels	Dark Bluish Gray	1×
14226c31	String with End Studs 31L OverallString, Bands and Reels	Black	1×
3708	Technic Axle 12Technic Axles	Black	4×
32062	Technic Axle 2 NotchedTechnic Axles	Red	9×
4519	Technic Axle 3Technic Axles	Yellow	14×
24316	Technic Axle 3 with StopTechnic Axles	Reddish Brown	4×
6587	Technic Axle 3 with StudTechnic Axles	Dark Tan	2×
50450	Technic Axle 32Technic Axles	Black	2×
3705	Technic Axle 4Technic Axles	Red	2×
99008	Technic Axle 4 with Centre StopTechnic Axles	Tan	3×
87083	Technic Axle 4 with StopTechnic Axles	Dark Bluish Gray	9×
32073	Technic Axle 5Technic Axles	Light Bluish Gray	2×
15462	Technic Axle 5 with StopTechnic Axles	Reddish Brown	4×
59426	Technic Axle 5.5 with Stop [Rounded Short End]Technic Axles	Dark Bluish Gray	2×
3706	Technic Axle 6Technic Axles	Red	4×
44294	Technic Axle 7Technic Axles	Yellow	2×
73507	Technic Beam 1 x 11 Thick with Alternating HolesTechnic Beams	Black	2×
41239	Technic Beam 1 x 13 ThickTechnic Beams	Light Bluish Gray	1×
32278	Technic Beam 1 x 15 ThickTechnic Beams	Black	6×
60483	Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleTechnic Beams	Black	4×
60483	Technic Beam 1 x 2 Thick with Pin Hole and Axle HoleTechnic Beams	Light Bluish Gray	8×
41677	Technic Beam 1 x 2 ThinTechnic Beams	Black	2×
41677	Technic Beam 1 x 2 ThinTechnic Beams	Blue	2×
32523	Technic Beam 1 x 3 ThickTechnic Beams	Black	4×
32523	Technic Beam 1 x 3 ThickTechnic Beams	Blue	2×
32523	Technic Beam 1 x 3 ThickTechnic Beams	Dark Bluish Gray	1×
32523	Technic Beam 1 x 3 ThickTechnic Beams	White	1×
6632	Technic Beam 1 x 3 ThinTechnic Beams	Black	5×
32449	Technic Beam 1 x 4 ThinTechnic Beams	Black	2×
32316	Technic Beam 1 x 5 ThickTechnic Beams	Black	13×
32316	Technic Beam 1 x 5 ThickTechnic Beams	Light Bluish Gray	2×
32017	Technic Beam 1 x 5 ThinTechnic Beams	Yellow	1×
11478	Technic Beam 1 x 5 Thin with Axle Holes on EndsTechnic Beams	Black	4×
32524	Technic Beam 1 x 7 ThickTechnic Beams	Black	9×
32524	Technic Beam 1 x 7 ThickTechnic Beams	Dark Orange	3×
32524	Technic Beam 1 x 7 ThickTechnic Beams	Lime	1×
32524	Technic Beam 1 x 7 ThickTechnic Beams	White	1×
2391	Technic Beam 1 x 7 Thick with Alternating HolesTechnic Beams	Black	2×
2391	Technic Beam 1 x 7 Thick with Alternating HolesTechnic Beams	Yellow	3×
32271	Technic Beam 1 x 9 Bent (7 - 3) ThickTechnic Beams	Light Bluish Gray	2×
40490	Technic Beam 1 x 9 ThickTechnic Beams	Light Bluish Gray	2×
6612	Technic Beam 1 x 9 Thick with Alternating HolesTechnic Beams	Light Bluish Gray	1×
4586	Technic Beam 1 x 9 Thin with 3 HolesTechnic Beams	Black	2×
32140	Technic Beam 2 x 4 L-Shape ThickTechnic Beams	Black	15×
80286	Technic Beam 2 x 5 L-Shape with Quarter Ellipse ThickTechnic Beams	Black	2×
60484	Technic Beam 3 x 3 T-Shape ThickTechnic Beams	Red	1×
99773	Technic Beam Triangle Thin [Type II]Technic Beams	Dark Bluish Gray	1×
39793	Technic Connector Beam 3 x 3Technic Beams	Yellow	1×
3167	Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole]Technic Beams Special	Dark Bluish Gray	4×
61408	Technic Beam 3 x 0.5 Liftarm with Boss and Blocked, Squared Pin HoleTechnic Beams Special	Black	1×
67491	Technic Beam Frame 3 x 19 with 2 Center Cross Beams, 3 Openings ThickTechnic Beams Special	Dark Bluish Gray	3×
39794	Technic Beam Frame 7 x 11Technic Beams Special	Black	3×
73230	Technic Brick 1 x 1 with Axle HoleTechnic Bricks	Dark Bluish Gray	2×
3713	Technic BushTechnic Bushes	Black	4×
3713	Technic BushTechnic Bushes	Light Bluish Gray	3×
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Light Bluish Gray	3×
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Yellow	1×
59443	Technic Axle Connector Smooth [with x Hole + Orientation]Technic Connectors	Black	4×
59443	Technic Axle Connector Smooth [with x Hole + Orientation]Technic Connectors	Reddish Brown	3×
42135	Technic Axle Connector with Axle Hole [Reinforced]Technic Connectors	Black	2×
42135	Technic Axle Connector with Axle Hole [Reinforced]Technic Connectors	Blue	1×
32013	Technic Axle and Pin Connector Angled #1Technic Connectors	Blue	8×
32013	Technic Axle and Pin Connector Angled #1Technic Connectors	Light Bluish Gray	2×
32034	Technic Axle and Pin Connector Angled #2 - 180°Technic Connectors	Black	1×
32034	Technic Axle and Pin Connector Angled #2 - 180°Technic Connectors	Blue	2×
6536	Technic Axle and Pin Connector PerpendicularTechnic Connectors	White	2×
42003	Technic Axle and Pin Connector Perpendicular 3L with 2 Pin HolesTechnic Connectors	Lime	1×
32184	Technic Axle and Pin Connector Perpendicular 3L with Centre Pin HoleTechnic Connectors	Yellow	2×
69819	Technic Axle and Pin Connector Perpendicular Double Split [Reinforced]Technic Connectors	Black	2×
63869	Technic Axle and Pin Connector Perpendicular TripleTechnic Connectors	White	3×
7660	Technic Connector 1 x 5 with Worm Gear HoleTechnic Connectors	White	1×
42195	Technic Driving Ring Connector Smooth [2 Rounded and 2 Flat Side Walls]Technic Connectors	Light Bluish Gray	1×
46189	Technic Pin Connector 3L with 2 Pins and Center Hole [Pin Ridges Across Part]Technic Connectors	Blue	2×
49130	Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Along Part)Technic Connectors	Light Bluish Gray	3×
2393	Technic Pin Connector Hub Perpendicular 3L with 2 PinsTechnic Connectors	Light Bluish Gray	2×
22961	Technic Pin Connector Hub with 1 AxleTechnic Connectors	White	1×
65487	Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge]Technic Connectors	Black	15×
65487	Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Centered Friction Ridge]Technic Connectors	Blue	7×
27940	Technic Pin Connector Hub with 2 AxlesTechnic Connectors	White	3×
44874	Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes]Technic Connectors	Light Bluish Gray	5×
18654	Technic Pin Connector Round 1L [Beam]Technic Connectors	Black	3×
18654	Technic Pin Connector Round 1L [Beam]Technic Connectors	Lime	6×
62462	Technic Pin Connector Round [Slotted]Technic Connectors	Black	1×
62462	Technic Pin Connector Round [Slotted]Technic Connectors	Red	2×
87408	Technic Pin Connector Toggle Joint Smooth Double with Axle and Pin HolesTechnic Connectors	Black	1×
49283	Wire Clip with Axle HoleTechnic Connectors	Light Bluish Gray	1×
6589	Technic Gear 12 Tooth BevelTechnic Gears	Tan	1×
69778	Technic Gear 12 Tooth with Axle HoleTechnic Gears	Blue	1×
94925	Technic Gear 16 Tooth Reinforced [New Style]Technic Gears	Light Bluish Gray	4×
18946	Technic Gear 16 Tooth with Clutch on Both SidesTechnic Gears	Red	2×
32198	Technic Gear 20 Tooth BevelTechnic Gears	Tan	1×
69779	Technic Gear 20 Tooth with Axle Hole [+ Opening]Technic Gears	Dark Azure	1×
73763	Technic Worm Gear 6M with Axle HoleTechnic Gears	Light Bluish Gray	4×
15458	Technic Panel 3 x 11 x 1Technic Panels	Black	1×
71709	Technic Panel 3 x 7 x 1Technic Panels	Black	2×
5427	Technic Panel Curved 3 x 9Technic Panels	Black	1×
24119	Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel SurfaceTechnic Panels	Dark Orange	6×
24119	Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel SurfaceTechnic Panels	White	2×
24116	Technic Panel Curved and Bent 6 x 3Technic Panels	Black	2×
2387	Technic Panel Fairing #7 3L Very Small Smooth, Side ATechnic Panels	Black	1×
2389	Technic Panel Fairing #8 3L Very Small Smooth, Side BTechnic Panels	Black	1×
71682	Technic Panel Fairing 2 x 3 x 1Technic Panels	Black	2×
11214	Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L AxleTechnic Pins	Dark Bluish Gray	12×
11214	Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L AxleTechnic Pins	Red	2×
18651	Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L AxleTechnic Pins	Black	8×
43093	Technic Axle Pin with Friction Ridges LengthwiseTechnic Pins	Blue	13×
3749	Technic Axle Pin without Friction Ridges LengthwiseTechnic Pins	Tan	3×
89678	Technic Pin 1/2 with FrictionTechnic Pins	Dark Bluish Gray	2×
89678	Technic Pin 1/2 with FrictionTechnic Pins	Red	4×
4274	Technic Pin 1/2 without Friction RidgesTechnic Pins	White	3×
32002	Technic Pin 3/4Technic Pins	Tan	4×
65304	Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole]Technic Pins	Orange	9×
42924	Technic Pin Long with Friction Ridges Lengthwise, 1 Center SlotTechnic Pins	Blue	51×
39888	Technic Pin Long without Friction Ridges, with Anti-Roll NotchTechnic Pins	Tan	6×
61332	Technic Pin with Friction Ridges Lengthwise with No Center SlotsTechnic Pins	Black	91×
53585	Technic Ball Joint with Through Axle HoleTechnic Special	Black	2×
85943	Technic Brick 1 x 2 with Hole and Dual Beam ExtensionsTechnic Special	White	1×
52730	Technic Steering / CV Ball Joint Female with 3L AxleTechnic Steering, Suspension and Engine	Dark Bluish Gray	1×
77590	Technic Steering / CV Ball Joint, Cardan Ball with Cross Hole 3LTechnic Steering, Suspension and Engine	Light Bluish Gray	1×
61903	Technic Universal Joint 3L [Complete Assembly]Technic Steering, Suspension and Engine	Light Bluish Gray	1×
98138	Tile Round 1 x 1Tiles Round and Curved	Black	1×
98138	Tile Round 1 x 1Tiles Round and Curved	Red	1×
15535	Tile Special Round 2 x 2 with HoleTiles Special	White	6×
68327	Wheel 41 x 15Wheels and Tyres	Dark Orange	1×
78258	Bar 2L with Stop in CenterBars, Ladders and Fences	Sand Green	1×	Spare
87994	Bar 3LBars, Ladders and Fences	Bright Green	1×	Spare
63965	Bar 6L with Stop RingBars, Ladders and Fences	White	1×	Spare
37775	Wave / Flame Small with PinEnergy Effects	Trans-Light Blue	1×	Spare
64567	Weapon Lightsaber Hilt with Bottom RingMinifig Shields, Weapons, & Tools	Bright Light Orange	1×	Spare
90398pr0007	Minifig Trophy Statuette with Astronaut PrintMinifigs	White	1×	Spare
85861	Plate Round 1 x 1 with Open StudPlates Round Curved and Dishes	White	1×	Spare
3713	Technic BushTechnic Bushes	Black	1×	Spare
3713	Technic BushTechnic Bushes	Light Bluish Gray	1×	Spare
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Light Bluish Gray	1×	Spare
32123b	Technic Bush 1/2 Smooth with Axle Hole Semi-ReducedTechnic Bushes	Yellow	1×	Spare
18654	Technic Pin Connector Round 1L [Beam]Technic Connectors	Black	1×	Spare
18654	Technic Pin Connector Round 1L [Beam]Technic Connectors	Lime	1×	Spare
89678	Technic Pin 1/2 with FrictionTechnic Pins	Dark Bluish Gray	1×	Spare
89678	Technic Pin 1/2 with FrictionTechnic Pins	Red	1×	Spare
4274	Technic Pin 1/2 without Friction RidgesTechnic Pins	White	1×	Spare
32002	Technic Pin 3/4Technic Pins	Tan	1×	Spare
61332	Technic Pin with Friction Ridges Lengthwise with No Center SlotsTechnic Pins	Black	3×	Spare
98138	Tile Round 1 x 1Tiles Round and Curved	Black	1×	Spare
98138	Tile Round 1 x 1Tiles Round and Curved	Red	1×	Spare