Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin
Part Number 3747a
Name Brick Sloped Inverted 33° 3 x 2, No Connections between Studs, Ovoid Bottom Pin
Category Bricks Sloped
Material Plastic
2 related parts (same mold or print family)

Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

Appears in 392 sets
Black (99 sets)
    Red (78 sets)
      White (64 sets)
        Blue (53 sets)
          Light Gray (47 sets)
            Yellow (41 sets)
              Dark Gray (25 sets)
                Green (10 sets)
                  Dark Bluish Gray (9 sets)
                    Light Bluish Gray (9 sets)
                      Orange (9 sets)
                        Dark Red (7 sets)
                          Dark Turquoise (5 sets)
                            Tan (3 sets)
                              Brown (1 set)
                                Dark Blue (1 set)
                                  Reddish Brown (1 set)
                                    Sand Blue (1 set)
                                      Sand Green (1 set)