BOM related tables :-
STKO --- BOM - header
STPO --- BOM - item
STAS --- BOMs - Item Selection
STPN --- BOMs - follow-up control
STPU --- BOM - sub-item
STZU --- Permanent BOM data
PLMZ --- Allocation of BOM - items to operations
MAST --- Material to BOM link
KDST --- Sales order to BOM link
PLPLAN_PARAM --- BOM-dependent planning parameter
SNUM --- BOM explosion number
T415S --- BOM status
T415T --- BOM Status Texts
T416 --- BOM Usage - Item Statuses
T416T --- BOM Usage Texts
T618EM --- BOM of CAP material components
TCS09 --- BOM Control Depending on Category and Usage
TCS11 --- BOM Objects
TCS15 --- BOMs with History Requirement
TCS17 --- BOMs with History Requirement
TCS19 --- BOM Item Object Types
TCS21 --- BOM Item Object Types: internal > external
TCS22 --- BOM Item Object Types: external > internal
TCS31 --- BOM Field Selection - Usage (T416)
TCS32 --- BOM to Plant Allocation - Field Selection
TCS33 --- BOM Field Selection (SAP)
TCS34 --- BOM Field Selection - Control Data (TCS03)