How many pieces does the LEGO International Space Station (21321-1) have?

The LEGO International Space Station set (21321-1) contains 864 pieces. It was released in 2020 as part of the LEGO LEGO Ideas and CUUSOO theme.

How can I find missing parts for LEGO set 21321-1?

On BrickMissing you can check which parts from the LEGO International Space Station (21321-1) you already own. Add your LEGO collection and we'll show exactly which of the 864 pieces you're missing and which you already have.

Can I build the LEGO International Space Station with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 864 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO International Space Station from?

The LEGO International Space Station (21321-1) belongs to the LEGO LEGO Ideas and CUUSOO theme. You can browse all LEGO Ideas and CUUSOO sets on BrickMissing to find more sets from this theme.

International Space Station

🏷️ 21321-1•🎨 LEGO Ideas and CUUSOO•📅 2020•🧱 864 parts•Intermediate

The LEGO Ideas International Space Station (21321-1) meticulously recreates the iconic orbital laboratory with 864 pieces. This detailed display model features a fully posable Canadarm2, assembled with articulated sections for realistic movement. Its core structure integrates two primary rotating joints, allowing builders to precisely position the eight adjustable solar panels. These panels are constructed to reflect the real ISS’s dynamic orientation. Designed for display, this authentic rendition showcases the intricate engineering of the station, resting on a sturdy black stand.

Parts Inventory

🧱 864 parts

Part	Color	Qty
Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] 10247	Light Bluish Gray	2×
Bar Holder with Clip 11090	White	3×
Brick Special 1 x 2 with 2 Studs on 1 Side 11211	Tan	1×
Sports Roller Skate 11253	Black	2×
Sports Roller Skate 11253	Light Bluish Gray	4×
Plate Special 1 x 2 with Clip Horizontal on Side 11476	Light Bluish Gray	2×
Slope Curved 2 x 1 No Studs [1/2 Bow] 11477	White	2×
Tile Round 2 x 2 with Silver Lines, Bolts/Dots Print 14769pr1112	Light Bluish Gray	3×
Slope Curved 2 x 2 x 2/3 15068	Light Bluish Gray	2×
Slope Curved 2 x 2 x 2/3 15068	White	7×

Showing 10 of 186 parts

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Plate Special 1 x 2 with Clip Horizontal on Side	11476	Light Bluish Gray	2×
Slope Curved 2 x 1 No Studs [1/2 Bow]	11477	White	2×
Tile Round 2 x 2 with Silver Lines, Bolts/Dots Print	14769pr1112	Light Bluish Gray	3×
Slope Curved 2 x 2 x 2/3	15068	Light Bluish Gray	2×
Slope Curved 2 x 2 x 2/3	15068	White	7×
Plate 2 x 2 with 2 Pins	15092	Dark Bluish Gray	1×
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise	15100	Black	4×
Brick Round 2 x 2 Dome Bottom [Open Stud]	15395	White	1×
Tile Round 2 x 2 with Hole	15535	White	4×
Tile Round 2 x 2 with Hole	15535	Dark Bluish Gray	3×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	Black	2×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	White	3×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	Light Bluish Gray	1×
Slope 45? 2 x 1 with 2/3 Cutout [New Version]	15672	Black	8×
Slope 45? 2 x 1 with 2/3 Cutout [New Version]	15672	White	12×
Tile Special 1 x 1 with Clip with Rounded Edges	15712	White	3×
Tile Special 1 x 1 with Clip with Rounded Edges	15712	Black	3×
Brick Round 2 x 2, Pin Holes	17485	Light Bluish Gray	2×
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle	18651	Black	2×
Technic Pin Connector Round 1L [Beam]	18654	White	1×
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)	18674	Light Bluish Gray	5×
Tile Round 1 x 1 with Hollow Bar	20482	White	3×
Bar Holder with Hole and Bar Handle	23443	White	4×
Technic Axle 11	23948	Light Bluish Gray	8×
Panel 1 x 3 x 1	23950	Dark Bluish Gray	2×
Large Figure Weapon Lightsaber Hilt with Axle Hole and Two Bar Holders	24122	White	2×
Large Figure Weapon Lightsaber Hilt with Axle Hole and Two Bar Holders	24122	Dark Bluish Gray	16×
Tile Special 1 x 2 Grille with Bottom Groove	2412b	Black	10×
Plate 2 x 2 Corner	2420	Light Bluish Gray	4×
Slope Curved 2 x 1 Inverted	24201	White	4×
Tile 1 x 4 with Solar Panels Print	2431pr0115	Dark Blue	64×
Plate 2 x 12	2445	White	4×
Plate 2 x 12	2445	Orange	16×
Plate 2 x 12	2445	Light Bluish Gray	2×
Wedge Plate 3 x 3 Cut Corner	2450	Black	2×
Wedge Plate 3 x 3 Cut Corner	2450	White	2×
Brick Special 1 x 2 with Pin	2458	Black	8×
Plate Special 1 x 2 Side Handle [Free Ends]	2540	Light Bluish Gray	7×
Plate Special 1 x 1 Rounded with Handle	26047	Light Bluish Gray	3×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	White	1×
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]	2654	Black	7×
Technic Pin with Friction Ridges Lengthwise and Center Slots	2780	Black	3×
Brick Special 1 x 2 with Grille	2877	Black	4×
Lever Small Base with Black Lever	298c02	Light Bluish Gray	1×
Brick 2 x 2	3003	White	2×
Brick 1 x 8	3008	Black	1×
Brick Curved 2 x 2, Two Top Studs	30165	White	2×
Plate 2 x 4	3020	Light Bluish Gray	2×
Plate 2 x 4	3020	Dark Tan	5×
Plate 2 x 4	3020	Black	4×
Plate 2 x 3	3021	Light Bluish Gray	8×
Plate 2 x 3	3021	White	1×
Plate 2 x 2	3022	Tan	1×
Plate 2 x 2	3022	Dark Bluish Gray	8×
Plate 2 x 2	3022	White	3×
Plate 1 x 1	3024	Pearl Gold	16×
Plate 1 x 1	3024	Black	1×
Plate 1 x 1	3024	White	1×
Plate 6 x 16	3027	Black	1×
Flag 7 x 3 with Rod	30292	White	4×
Flag 7 x 3 with Rod with Solar Panel print	30292pr0005	Dark Blue	2×
Plate 2 x 8	3034	Black	1×
Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation	30361c	Light Bluish Gray	2×
Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation	30361c	White	1×
Brick Round 2 x 2 Dome Top, Hollow Stud	30367c	White	1×
Bar 4L (Lightsaber Blade / Wand)	30374	White	1×
Bar 4L (Lightsaber Blade / Wand)	30374	Pearl Gold	5×
Slope 45? 2 x 2	3039	Black	4×
Brick Round 1 x 1 Open Stud	3062b	Light Bluish Gray	2×
Tile 2 x 2 with Groove	3068b	White	8×
Tile 2 x 2 with Groove	3068b	Black	3×
Tile 2 x 2 with Groove	3068b	Orange	2×
Tile 1 x 2 with Groove	3069b	White	2×
Tile 1 x 1 with Groove	3070b	White	6×
Technic Brick 1 x 2 [2 Pin Holes]	32000	White	9×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	32054	Light Bluish Gray	8×
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]	32054	Black	4×
Technic Axle 2 Notched	32062	Black	8×
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin	32064a	Light Bluish Gray	4×
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin	32064a	White	2×
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced	32123b	Light Bluish Gray	3×
Technic Plate 1 x 5 with Smooth Ends, 4 Studs and Centre Axle Hole	32124	Black	1×
Technic Beam 1 x 15 Thick	32278	Black	4×
Technic Beam 1 x 3 Thick	32523	Black	2×
Slope Inverted 45° 4 x 1 Double with 1 x 2 Recessed	32802	Dark Bluish Gray	2×
Slope Curved 2 x 2 x 2/3 Inverted	32803	White	2×
Slope Curved 2 x 2 x 2/3 Inverted	32803	Light Bluish Gray	2×
Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L	32828	Light Bluish Gray	4×
Slope 33° 3 x 4	3297	Black	2×
Slope 33° 2 x 2 Double	3300	White	12×
Plate Special 1 x 3 with 2 Studs with Groove and Inside Stud Holder (Jumper)	34103	Light Bluish Gray	2×
Plate Special 1 x 2 Rounded with 2 Open Studs	35480	Light Bluish Gray	23×
Plate Special 1 x 2 Rounded with 2 Open Studs	35480	Dark Bluish Gray	2×
Brick 1 x 3	3622	Black	1×
Fence Lattice 1 x 4 x 1	3633	White	4×
Plate 1 x 6	3666	White	3×
Plate 1 x 6	3666	Black	3×
Bracket 1 x 1 - 1 x 1 Inverted	36840	Dark Bluish Gray	2×
Technic Brick 1 x 2 [1 Pin Hole]	3700	Black	5×
Technic Brick 1 x 4 [3 Pin Holes]	3701	Black	1×
Technic Brick 1 x 4 [3 Pin Holes]	3701	White	2×
Technic Brick 1 x 16 [15 Pin Holes]	3703	Black	2×
Technic Axle 4	3705	Red	1×
Technic Axle 12	3708	Red	1×
Technic Plate 2 x 4 [3 Holes]	3709	Light Bluish Gray	4×
Plate 1 x 4	3710	Dark Bluish Gray	2×
Plate 2 x 6	3795	White	3×
Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment]	3839b	Light Bluish Gray	2×
Hinge Brick 1 x 2 Base	3937	Black	1×
Brick Round 2 x 2 with Axle Hole	3941	Light Bluish Gray	11×
Bracket 2 x 2 - 2 x 2	3956	Light Bluish Gray	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Dark Bluish Gray	11×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Black	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	White	3×
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring]	4081b	White	2×
Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls]	42195	Light Bluish Gray	8×
Technic Pin 1/2	4274	Black	3×
Slope 33° 3 x 1	4286	Black	2×
Technic Axle Pin with Friction Ridges Lengthwise	43093	Black	3×
Wedge Plate 4 x 4 with 2 x 2 Cutout	43719	Black	1×
Wedge Plate 4 x 4 with 2 x 2 Cutout	43719	White	2×
Wedge Plate 3 x 2 Right	43722	Black	1×
Wedge Plate 3 x 2 Left	43723	Black	1×
Brick Curved 6 x 2	44126	Black	2×
Hinge Plate 1 x 2 Locking with 1 Finger on Side, without Groove	44567b	Black	2×
Tail Shuttle - Small	44661	White	1×
Bracket 1 x 2 - 2 x 2	44728	Dark Bluish Gray	8×
Plate 1 x 10	4477	White	6×
Plate 1 x 10	4477	Dark Bluish Gray	4×
Technic Axle 3	4519	Yellow	8×
Brick Special 1 x 2 x 2/3 with Studs on Sides	4595	Light Bluish Gray	1×
Pneumatic T-Piece (T Bar) [New Style]	4697b	White	10×
Brick Special 1 x 1 Studs on 4 Sides	4733	White	5×
Dish 2 x 2 Inverted [Radar]	4740	Metallic Silver	4×
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]	48729b	Light Bluish Gray	8×
Technic Ball Joint with Through Axle Hole	53585	Black	4×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Light Bluish Gray	2×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	Black	1×
Slope 30° 1 x 1 x 2/3 (Cheese Slope)	54200	White	4×
Technic Brick Modified 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball	57909b	Dark Bluish Gray	2×
Technic Axle Connector Smooth [with x Hole + Orientation]	59443	Dark Bluish Gray	8×
Plate Special 1 x 2 with Clips Horizontal [Open O Clips]	60470b	Light Bluish Gray	4×
Technic Axle 9	60485	Yellow	1×
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]	60897	White	4×
Hinge Brick 2 x 2 Top Plate Thin	6134	Light Bluish Gray	1×
Plate Special 4 x 6 with Studs on 3 Edges with ISS and 'International Space Station' print	6180pr0005	Black	1×
Technic Brick 1 x 1 with Pin Hole	6541	Dark Bluish Gray	16×
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots	6558	Black	10×
Tile Special 2 x 3 with 2 Clips without Tab between Clips with Solar Panel print	65886pr0008	Dark Blue	46×
Plate Round 1 x 1 with Open Stud	85861	White	9×
Plate Round 1 x 1 with Open Stud	85861	Black	4×
Cone 1.17 x 1.17 x 2/3 (Fez)	85975	White	1×
Cone 1.17 x 1.17 x 2/3 (Fez)	85975	Black	5×
Slope 30? 1 x 2 x 2/3	85984	White	14×
Slope 30? 1 x 2 x 2/3	85984	Light Bluish Gray	16×
Tile 2 x 4 with Groove	87079	Light Bluish Gray	4×
Bar 5L with Handle (Friction Ram)	87618	Light Bluish Gray	2×
Bar 3L	87994	Light Bluish Gray	37×
Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm]	88072	Dark Bluish Gray	1×
Slope Brick Curved 2 x 4 x 2/3 No Studs, with Bottom Tubes	88930	White	2×
Minifig Trophy Statuette, Astronaut Print	90398pr0012	White	2×
Bar 3L with Handle, Stop Ring and Side Stops (Minifig Ski Pole)	90540	Pearl Gold	4×
Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole	92013	White	2×
Plate Special 1 x 2 [Top Clip]	92280	White	3×
Brick Round 2 x 2 [Grill]	92947	White	1×
Arm Skeleton Bent with Clips at 90° [Vertical Grip]	93061	White	2×
Slope Curved 4 x 1 Double with No Studs	93273	White	2×
Bracket 1 x 2 - 2 x 4	93274	Light Bluish Gray	4×
Brick and Axle Separator v2.0	96874	Orange	1×
Brick Round 2 x 2 Truncated Cone	98100	Black	1×
Brick Round 2 x 2 Truncated Cone	98100	White	1×
Brick Round 2 x 2 Truncated Cone with Black Squares print	98100pr0010	Light Bluish Gray	1×
Tile Round 1 x 1	98138	White	5×
Tile Round 1 x 1	98138	Dark Bluish Gray	1×
Tile Round 1 x 1 with Soda Can Tab, Ring Pull Print	98138pr0035	Flat Silver	3×
Bracket 1 x 2 - 2 x 2 Inverted	99207	Light Bluish Gray	10×
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]	99563	Flat Silver	4×
Bracket 1 x 2 - 1 x 2 Inverted	99780	White	10×
Bracket 1 x 2 - 1 x 2 Inverted	99780	Black	2×
Bracket 1 x 2 - 1 x 2	99781	White	2×
Bracket 1 x 2 - 1 x 2	99781	Light Bluish Gray	2×

Build DNA

Parts inventory insights for International Space Station

864 pieces puts this build -28% against the average LEGO Ideas and CUUSOO set and +93% against the average 2020 release.

LEGOLEGO IDEAS AND CUUSOO

Vs average LEGO Ideas and CUUSOO set

-28%-344 parts

This set864

Average set1,208

Average LEGO Ideas and CUUSOO set: 1,208 pieces across 97 other sets.

Vs average 2020 set

+93%+417 parts

This set864

Average set447

Average 2020 set: 447 pieces across 450 other sets.

Color profile

14different colors

Dominant color

Light Bluish Gray

Light Bluish Gray224x

26%

White218x

25%

Black148x

17%

Dark Blue112x

13%

Unique parts

6 pieces per unique type

144

Repeat factor

Average pieces per unique type.

Most used part

Tile 1 x 4 with Solar Panels Print

64x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

This site is not affiliated with or endorsed by the LEGO Group.

Build Insights🧩144unique parts🎨14different colors📊61.7avg. parts per color🏆64×Tile 1 x 4 with Solar Panels Print

🎨 All LEGO Ideas and CUUSOO sets 📅 All sets from 2020

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