LEGO part 3937: Hinge Brick 1 x 2 Base

Specifications
| Reference | 3937 |
|---|---|
| Category | Hinges, Arms and Turntables |
| Material | ABS plastic |
| Colours | 23 |
| Sets | 1,778 |
| Listed pieces | 5,283 |
| First appearance | 1995 |
| Latest appearance | 2026 |
| Element (Black) | 393726 |
LEGO part 3937, Hinge Brick 1 x 2 Base, belongs to the Hinges, Arms and Turntables category. It exists in 23 colours and appears in 1,778 sets of our database, from 1995 to 2026, for a total of 5,283 listed pieces. Its most common colour is Black.
Number 3937 identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in black, it is 393726.
Part 3937 through the years
The oldest set in our database that contains part 3937 is 6195 Neptune Discovery Lab, released in 1995 in the Aquazone theme. It is still in use: the most recent set featuring it, 11377 The Lord of the Rings: Minas Tirith, dates from 2026.
Its peak year is 2026, with 132 sets containing it. The set with the most copies is 10307 Eiffel Tower: 44 copies, against an average of 3 per set.
It is spread across several themes, led by Star Wars (13%), City (5%) and Friends (5%). With 1,778 sets, it is the most widespread part in the Hinges, Arms and Turntables category and ranks no. 84 of 2,731 parts in our database.
Sets containing part 3937, by period
| Period | Sets | |
|---|---|---|
| 1995-1999 | 131 | |
| 2000-2009 | 332 | |
| 2010-2019 | 572 | |
| 2020-2026 | 743 |
Colours of part 3937
6 colours appear in only one set: medium azure (21171 The Horse Stable), lime (4097 Mini Robots), dark orange (76956 T. rex Breakout), orange (5858 The Golden Palace, Blue Box), dark red (7113 Tusken Raider Encounter), …
| Colour (element ID) | Sets | Pieces | Example sets |
|---|---|---|---|
| Black393726 | 541 | 1,295 | 764357534776909 |
| Light Bluish Gray4211469 | 348 | 875 | 753377534710316 |
| Dark Bluish Gray4211066 | 304 | 889 | 103071030075192 |
| White6619287 · 393701 | 231 | 578 | 213257175675105 |
| Red393721 | 130 | 361 | 311099217610304 |
| Reddish Brown6186045 · 4541234 | 98 | 316 | 103167639821318 |
| Blue393723 | 90 | 196 | 752801027471753 |
| Yellow393724 | 85 | 164 | 103007698971395 |
| Light Gray393702 | 60 | 158 | 10123100304709 |
| Tan6174919 · 4542399 | 50 | 153 | 710434321710279 |
| Medium Nougat6167642 | 50 | 120 | 103057694831120 |
| Sand Green6223234 · 4286649 | 22 | 68 | 103177174110290 |
| Green6170765 · 4541232 | 19 | 34 | 761757617841432 |
| Dark Gray4112234 · 393727 | 18 | 42 | 609871717141 |
| Bright Light Blue6383077 | 3 | 6 | 102987140921350 |
| Reddish Orange6612507 | 2 | 14 | 1138611385 |
| Dark Azure6609914 | 2 | 5 | 400004872162 |
| Medium Azure6347987 | 1 | 2 | 21171 |
| Lime4183135 | 1 | 2 | 4097 |
| Dark Orange6396924 | 1 | 2 | 76956 |
| Orange4184010 | 1 | 1 | 5858 |
| Dark Red4162583 | 1 | 1 | 7113 |
| Dark Pink4217281 | 1 | 1 | 5942 |
Where to buy part 3937
Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.
Sets that include part 3937
Sets ranked by popularity that include at least one part 3937, in any colour.
10307Eiffel Tower2022 · 10,001 piecesView the set
10300Back to the Future Time Machine2022 · 1,872 piecesView the set
75337AT-TE Walker2022 · 1,082 piecesView the set
71043Hogwarts Castle2018 · 6,020 piecesView the set
76435Hogwarts Castle: The Great Hall2024 · 1,727 piecesView the set
75347TIE Bomber2023 · 625 piecesView the set
10305 Lion Knights' Castle2022 · 4,515 pieces
76909 Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One2022 · 567 pieces
75192 Millennium Falcon2017 · 7,541 pieces
10316 Lord of the Rings: Rivendell2023 · 6,181 pieces
75322 Hoth AT-ST2022 · 586 pieces
76948 T. rex & Atrociraptor Dinosaur Breakout2022 · 466 pieces
31120 Medieval Castle2021 · 1,426 pieces
75280 501st Legion Clone Troopers2020 · 285 pieces
75252 Imperial Star Destroyer2019 · 4,784 pieces
75955 Hogwarts Express2018 · 806 pieces
75331 The Razor Crest2022 · 6,187 pieces
71411 The Mighty Bowser2022 · 2,807 pieces
42130 BMW Motorrad M 1000 RR2022 · 1,922 pieces
76398 Hogwarts Hospital Wing2022 · 509 pieces
76240 Batmobile Tumbler2021 · 2,049 pieces
75316 Mandalorian Starfighter2021 · 544 pieces
10274 ECTO-12020 · 2,352 pieces
31109 Pirate Ship2020 · 1,260 pieces
75292 The Razor Crest2020 · 1,023 pieces
3D75969 Hogwarts Astronomy Tower2020 · 971 pieces
3D21318 Tree House2019 · 3,037 pieces
3D42110 Land Rover Defender2019 · 2,573 pieces
71040 Disney Castle2016 · 4,081 pieces
10312 Jazz Club2023 · 2,900 pieces
3D10297 Boutique Hotel2022 · 3,068 pieces
71767 Ninja Dojo Temple2022 · 1,396 pieces
76989 Horizon Forbidden West: Tallneck2022 · 1,222 pieces
75330 Dagobah Jedi Training Diorama2022 · 1,000 pieces
75329 Death Star Trench Run Diorama2022 · 665 pieces
76946 Blue & Beta Velociraptor Capture2022 · 181 pieces
76391 Hogwarts Icons Collectors' Edition2021 · 3,010 pieces
3D21325 Medieval Blacksmith2021 · 2,164 pieces
71756 Hydro Bounty2021 · 1,159 pieces
76388 Hogsmeade Village Visit2021 · 847 pieces
76191 Infinity Gauntlet2021 · 590 pieces
71753 Fire Dragon Attack2021 · 564 pieces
76239 Batmobile Tumbler: Scarecrow Showdown2021 · 422 pieces
3D75954 Hogwarts Great Hall2018 · 882 pieces
60421 Robot World Roller-Coaster Park2024 · 986 pieces
10317 Land Rover Classic Defender 902023 · 2,344 pieces
75355 X-Wing Starfighter2023 · 1,949 pieces
75352 Emperor's Throne Room Diorama2023 · 807 pieces
43217 Up House2023 · 598 pieces
76956 T. rex Breakout2022 · 1,212 pieces
76910 Aston Martin Valkyrie AMR Pro and Aston Martin Vantage GT32022 · 595 pieces
60347 Grocery Store2022 · 404 pieces
10294 Titanic2021 · 9,092 pieces
3D10283 NASA Space Shuttle Discovery2021 · 2,355 pieces
10279 Volkswagen T2 Camper Van2021 · 2,207 pieces
71395 Super Mario 64 Question Mark Block2021 · 2,064 pieces
3D10295 Porsche 911 Turbo & 911 Targa2021 · 1,458 pieces
71755 Temple of the Endless Sea2021 · 1,060 pieces
75314 The Bad Batch Attack Shuttle2021 · 970 pieces
71738 Zane's Titan Mech Battle2021 · 840 pieces
31117 Space Shuttle Adventure2021 · 486 pieces
76175 Attack on the Spider Lair2021 · 482 pieces
71374 Nintendo Entertainment System2020 · 2,646 pieces
21322 Pirates of Barracuda Bay2020 · 2,545 pieces
3D10270 Bookshop2020 · 2,504 pieces
92176 NASA Apollo Saturn V2020 · 1,969 pieces
Related parts
Hinge Brick 2 x 2 Top Plate Thin6134 · Paired part
Hinge Brick 1 x 2 Top Plate Thin3938 · Paired part
Often found with part 3937
Parts that share the most sets with part 3937, based on set inventories.
Plate 2 x 43020 · 1,583 shared sets
Plate 1 x 43710 · 1,526 shared sets
Plate 2 x 33021 · 1,429 shared sets
Plate 1 x 63666 · 1,303 shared sets
Plate 1 x 23023 · 1,662 shared sets
Plate 2 x 23022 · 1,513 shared sets
Plate 2 x 63795 · 1,332 shared sets
Plate Round 1 x 1 with Solid Stud6141 · 1,523 shared sets
Minifigures using part 3937
Part 3937 is used in one catalogued minifigure variant:
More parts in the Hinges, Arms and Turntables category
3680 Turntable 2 x 2 Plate, Base923 sets
3679 Turntable 2 x 2 Plate - Top916 sets
73983 Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]682 sets
61485 Turntable 4 x 4 Square Base, Locking547 sets
44302a Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth536 sets
30383 Hinge Plate 1 x 2 Locking with 1 Finger On Top504 sets
44301b Hinge Plate 1 x 2 Locking with 1 Finger On End, without Groove418 sets
3830 Hinge Brick 1 x 4 [Upper]404 sets
Frequently asked questions
How many LEGO sets include part 3937?
Part 3937 (Hinge Brick 1 x 2 Base) appears in 1,778 sets listed on Setopedia, from 1995 to 2026, in any colour.
Which LEGO set contains the most copies of part 3937?
Set 10307 Eiffel Tower, released in 2022, contains 44 copies, the highest count in our database. On average, a set containing part 3937 has 3.
Which colours does LEGO part 3937 come in?
23 colours are listed for part 3937. The most common is Black, found in 541 sets.
What is the rarest colour of part 3937?
According to our inventories, it is orange, found in only 1 set (5858 The Golden Palace, Blue Box).
What is the element ID of part 3937 in black?
In black, part 3937 has element ID 393726. Number 3937 is the mould number, the same for every colour.
Is LEGO part 3937 still used in recent sets?
Yes: it appears in sets released in 2026, such as 11377 The Lord of the Rings: Minas Tirith.
Where can I buy LEGO part 3937 individually?
Single parts 3937 can be ordered on Pick a Brick (lego.com) in colours currently produced, or on BrickLink for older colours. The part is also included in the sets listed on this page.

