Setobrick

LEGO part 30151a: Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud

Bricks Round and Cones9 colours87 sets

LEGO part LEGO part 30151a: Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud

Specifications

Reference30151a
CategoryBricks Round and Cones
MaterialABS plastic
Colours9
Sets87
Listed pieces165
First appearance1998
Latest appearance2015
Element (Trans-Clear)4113949
Most common colourTrans-Clear
Main themesBelville, City, Space
SetopediaData: Rebrickable
Spec sheet updated on 2026-09-29

LEGO part 30151a, Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud, belongs to the Bricks Round and Cones category. It exists in 9 colours and appears in 87 sets of our database, from 1998 to 2015, for a total of 165 listed pieces. Its most common colour is Trans-Clear.

Number 30151a identifies the shape and is moulded under the part. Each colour also has its own element ID, the one Pick a Brick uses: in trans-clear, it is 4113949.

Part 30151a through the years

The oldest set in our database that contains part 30151a is 5988 Pharaoh's Forbidden Ruins, released in 1998 in the Adventurers theme. No set in our database uses it after 2015, the year of 70736 Attack of the Morro Dragon. To get it today, look for older sets or buy it second-hand.

Its peak year is 1999, with 11 sets containing it. The set with the most copies is 3842 Lunar Command: 20 copies, against an average of 1.9 per set.

It is spread across several themes, led by Belville (10%), City (9%) and Space (7%). With 87 sets, it ranks no. 1,209 of 2,731 parts in our database and no. 39 of 78 in the Bricks Round and Cones category.

Sets containing part 30151a, by period

PeriodSets
1998-199915
2000-200950
2010-201522

Colours of part 30151a

2 colours appear in only one set: lime (3842 Lunar Command) and reddish brown (8876 Scorpion Prison Cave). 3 of its 9 colours are transparent.

Colour (element ID)SetsPiecesExample sets
Trans-Clear411394947641022877449516
Trans-Neon Green4506533 · 4144475152644807016370169
Red4262579 · 41189351120790572377994
Yellow4501347 · 4261623912598871717131
Orange4560750 · 41410965145000438424620
Dark Tan455869721238433855
Trans-Light Blue4256322 · 41603312672384579
Lime45598331103842
Reddish Brown4267295118876

Where to buy part 30151a

Setopedia shows no prices: they vary by colour, condition and seller. Amazon links are affiliate links.

Search part 30151a on AmazonPick a Brick (lego.com)BrickLink entryRebrickable entry

Sets that include part 30151a

Sets ranked by popularity that include at least one part 30151a, in any colour.

Related parts

Minifigures using part 30151a

Part 30151a is used in one catalogued minifigure variant:

More parts in the Bricks Round and Cones category

All parts in the Bricks Round and Cones category

Frequently asked questions

How many LEGO sets include part 30151a?

Part 30151a (Brick Round 2 x 2 x 1 2/3 Dome Top, Blocked Open Stud) appears in 87 sets listed on Setopedia, from 1998 to 2015, in any colour.

Which LEGO set contains the most copies of part 30151a?

Set 3842 Lunar Command, released in 2009, contains 20 copies, the highest count in our database. On average, a set containing part 30151a has 1.9.

Which colours does LEGO part 30151a come in?

9 colours are listed for part 30151a. The most common is Trans-Clear, found in 47 sets.

What is the rarest colour of part 30151a?

According to our inventories, it is reddish brown, found in only 1 set (8876 Scorpion Prison Cave).

What is the element ID of part 30151a in trans-clear?

In trans-clear, part 30151a has element ID 4113949. Number 30151a is the mould number, the same for every colour.

Is LEGO part 30151a still used in recent sets?

Not in our database: its last set dates from 2015 (70736 Attack of the Morro Dragon). Look for it in second-hand sets or on BrickLink.

Where can I buy LEGO part 30151a individually?

Single parts 30151a 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.