Universal School Set (9453-1) is a Universal Building Set LEGO set released in 1997 with 699 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Universal Building Set sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 98 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1997 (29 years ago — may be retired)
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Catalog scale
699 parts listed · 98 inventory lines tracked
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Minifigures
No minifigs in inventory (brick-only or Technic set)
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Build complexity
Large set — expect sticker sheets or multiple subassemblies; inspect photos closely
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~1,822 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Parts in this set
98 parts · page 1 of 3 · updating…
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Baseplate 16 x 323857 · ×1 · Green -
Baseplate 16 x 323857 · ×1 · Light Gray -
Brick 1 x 13005 · ×16 · Red -
Brick 1 x 13005 · ×12 · Yellow -
Brick 1 x 23004 · ×18 · Yellow -
Brick 1 x 23004 · ×18 · Red -
Brick 1 x 33622 · ×18 · Yellow -
Brick 1 x 33622 · ×18 · Red -
Brick 1 x 43010 · ×42 · Yellow -
Brick 1 x 43010 · ×42 · Red -
Brick 1 x 63009 · ×24 · Red -
Brick 1 x 63009 · ×24 · Yellow -
Brick 1 x 83008 · ×8 · Red -
Brick 1 x 83008 · ×8 · Yellow -
Brick 2 x 103006 · ×5 · Red -
Brick 2 x 103006 · ×5 · Yellow -
Brick 2 x 23003 · ×4 · Yellow -
Brick 2 x 23003 · ×4 · Red -
Brick 2 x 33002 · ×4 · Red -
Brick 2 x 33002 · ×4 · Yellow -
Brick 2 x 43001 · ×4 · Black -
Brick 2 x 43001 · ×18 · Red -
Brick 2 x 43001 · ×18 · Yellow -
Brick 2 x 83007 · ×4 · Red -
Brick Arch 1 x 6 x 2 - Thick Top with Reinforced Underside3307 · ×3 · Red -
Brick Round 1 x 1 Open Stud3062b · ×10 · Light Gray -
Brick Round 2 x 2 with Axle Hole3941 · ×8 · Light Gray -
Brick Round Corner 2 x 2 Macaroni with Stud Notch3063b · ×8 · Yellow -
Brick Separator v1.06007 · ×2 · Dark Gray -
Brick Sloped 33° 2 x 2 Double3300 · ×4 · Red -
Brick Sloped 33° 2 x 4 Double3299 · ×8 · Red -
Brick Sloped 33° 3 x 23298 · ×4 · Red -
Brick Sloped 33° 3 x 43297 · ×12 · Red -
Brick Sloped 45° 2 x 1 with Bottom Pin3040b · ×16 · Red -
Brick Sloped 45° 2 x 1 with Bottom Pin3040b · ×4 · Yellow -
Brick Sloped 45° 2 x 23039 · ×4 · Red -
Brick Sloped 45° 2 x 23039 · ×12 · Yellow -
Brick Sloped 45° 2 x 23039 · ×6 · Trans-Clear -
Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin3747a · ×8 · Yellow -
Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin3747a · ×2 · Red -
Brick Sloped Inverted 45° 2 x 13665 · ×8 · Yellow -
Brick Sloped Inverted 45° 2 x 13665 · ×4 · Red -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366024.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×8 · Yellow -
![Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]](https://cdn.rebrickable.com/media/parts/elements/366021.jpg)
Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes]3660 · ×14 · Red -
Brick Special 1 x 2 with Pin2458 · ×2 · Yellow -
Brick Special 2 x 2 with 2 Pins and Axle Hole30000 · ×8 · Dark Gray -
Brick Special 2 x 4 with Pins6249 · ×8 · Dark Gray -
Hair Ponytail6093 · ×2 · Black