Basic Building Set (740-1) is a Basic LEGO set released in 1985 with 530 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. This set includes 143 unique part types.
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Parts in this set
143 parts · page 1 of 3 · updating…
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Baseplate 16 x 323857 · ×1 · Light Gray -
![Battery Box, 4.5V, 4 x 24, 3 x C-Cell with Switch [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/7/73264c01.png)
Battery Box, 4.5V, 4 x 24, 3 x C-Cell with Switch [Complete Assembly]4350c02 · ×1 · Light Gray -
Bracket 2 x 2 - 2 x 23956 · ×2 · Black -
Brick 1 x 13005 · ×6 · Trans-Clear -
Brick 1 x 13005 · ×8 · Red -
Brick 1 x 13005 · ×16 · Yellow -
Brick 1 x 23004 · ×8 · Red -
Brick 1 x 23004 · ×16 · Yellow -
Brick 1 x 33622 · ×12 · Yellow -
Brick 1 x 33622 · ×6 · Red -
Brick 1 x 43010 · ×6 · Red -
Brick 1 x 43010 · ×10 · Yellow -
Brick 1 x 63009 · ×10 · Red -
Brick 1 x 63009 · ×12 · Yellow -
Brick 1 x 83008 · ×4 · Yellow -
Brick 1 x 83008 · ×4 · Red -
Brick 2 x 23003 · ×5 · Yellow -
Brick 2 x 23003 · ×8 · Red -
Brick 2 x 33002 · ×4 · Red -
Brick 2 x 43001 · ×1 · Yellow -
Brick 2 x 43001 · ×5 · Red -
Brick 2 x 83007 · ×2 · Yellow -
Brick Round 1 x 1 Open Stud3062b · ×6 · Black -
Brick Round 2 x 2 with Axle Hole3941 · ×4 · Black -
Brick Special 1 x 1 with Headlight4070 · ×6 · Red -
Brick Special 1 x 1 with Headlight4070 · ×2 · Yellow -
Door 1 x 4 x 5 Train Left with Red Bottom Half Print4181pr0002 · ×1 · Yellow -
Door 1 x 4 x 5 Train Right with Red Bottom Half Print4182pr0002 · ×1 · Yellow -
Door 1 x 4 x 5 with 4 Panes, Squared Base3861b · ×1 · Red -
Door Sliding - Type 14511 · ×2 · Red -
![Electric Connector, 2 Way Male Squared Narrow Long [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/7/70423.png)
Electric Connector, 2 Way Male Squared Narrow Long [Complete Assembly]766c01 · ×2 · Light Gray -
Fence Lattice 1 x 4 x 13633 · ×4 · Black -
Glass for Window 1 x 4 x 33855 · ×2 · Trans-Clear -
Glass for Window 4 x 4 x 3 Roof4448 · ×2 · Trans-Clear -
![Hinge Brick 1 x 4 [Lower]](https://cdn.rebrickable.com/media/parts/elements/383121.jpg)
Hinge Brick 1 x 4 [Lower]3831 · ×2 · Red -
![Hinge Brick 1 x 4 [Upper]](https://cdn.rebrickable.com/media/parts/elements/383021.jpg)
Hinge Brick 1 x 4 [Upper]3830 · ×2 · Red -
Hinge Plate 1 x 2 with 2 Fingers and Solid Studs4276a · ×2 · Black -
Hinge Plate 1 x 2 with 2 Fingers and Solid Studs4276a · ×2 · Yellow -
![Hinge Plate 1 x 2 with 3 Fingers [Solid Studs]](https://cdn.rebrickable.com/media/parts/ldraw/0/4275a.png)
Hinge Plate 1 x 2 with 3 Fingers [Solid Studs]4275a · ×6 · Black -
![Hinge Plate 1 x 2 with 3 Fingers [Solid Studs]](https://cdn.rebrickable.com/media/parts/ldraw/14/4275a.png)
Hinge Plate 1 x 2 with 3 Fingers [Solid Studs]4275a · ×2 · Yellow -
Hinge Plate 2 x 4 with Articulated Joint - Female3640 · ×1 · Black -
Hinge Plate 2 x 4 with Articulated Joint - Male3639 · ×1 · Black -
![Hinge Plate 2 x 5 with Large Hole [Complete Assembly]](https://cdn.rebrickable.com/media/parts/ldraw/0/3149ec01.png)
Hinge Plate 2 x 5 with Large Hole [Complete Assembly]3149bc01 · ×1 · Black -
Hinge Tile 1 x 2 1/2 with 2 Fingers on Top4531 · ×4 · Black -
Hook, Plate 1 x 2 with Crane Hook Left3127 · ×1 · Red -
Motor, Train, 4.5V 12 x 4 x 3 1/3 Type III, Open Contactsupn0259c02 · ×1 · Black -
Plate 1 x 13024 · ×4 · Red -
Plate 1 x 13024 · ×2 · Trans-Red