Structure of a multilevel BOM

The following example shows a multilevel bill of material.

Manufactured Item: Bicycle
Level Position Item Description Quantity
1 10 / 1 B Saddle 1
1 20 / 1 C Frame 1
1 30 / 1 D Wheel 2
2 10 / 1 E Spokes 35
2 20 / 1 F Hub 1
A Manufactured Item Bicycle
B Purchased Part Saddle
C Purchased Part Frame
D Manufactured Part Wheel
E Spokes
F Hub

Manufactured item D (wheel) is a phantom item.

The following example shows a Where - Used multilevel bill of material.

Item: Spoke
Item level Spoke Manufactured Item Position Description Quantity
1 B1 20/1 Front Wheel 30
.2 M1 30/1 Men's City Bike 60
.2 M2 60/1 Tandem Tour Ladies 60
.2 M3 70/1 Tandem Tour Men 60
.2 M4 60/1 Tandem Tour Family 60
1 B2 20/1 Rear Wheel 30
.2 M1 30/1 Men's City Bike 60
.2 M2 60/1 Tandem Tour Ladies 60
.2 M3 70/1 Tandem Tour Men 60
.2 M4 60/1 Tandem Tour Family 60
A Purchased Part Spoke
B1 Front wheel
B2 Rear wheel
M1 Manufactured item City Bike
M2 Manufactured item Tandem Tour Ladies
M3 Manufactured item Tandem Tour Men
M4 Manufactured item Tandem Tour Family