Common Tables used in SAP Material Management

Material Master
MARA - General Material Data (including Plant/Store data)
MARC - Plant Data for Material (Purchasing, MRP, Work Scheduling, QM view data)
MAKT - Material Descriptions
MARM - Units of Measure for Material
MVKE - Sales Data for Material (Sales Org, DC data view)
MBEW - Material Valuation (Accounting & Controlling related data)
MLGN - Material Data for Warehouse Number (WM data view)
MLGT - Material Data for Warehouse & Storage Type (WM data view 2)
MARD - Storage Location Data for Material
MPOP - Forecasting Parameters
(Do note that some data views data fields are stored in more than one table)

Batch Master
MCHA - Batch Master

Vendor Master
LFA1 - Vendor Master (General Data)
LFB1 - Vendor Master (Company Code Data)
LFBK - Vendor Master (Bank Details)
LFM1 - Vendor Master (Purchasing Data)
LFM2 - Vendor Master (Purchasing Organization Data)

Purchasing
T024 - Purchasing Group
EINA - Purchasing Info Record: General Data
EINE - Purchasing Info Record: Purchasing Organization Data
EORD - Source List
EBAN - Purchase Requisition
EKKO - Purchasing Document Header
EKPO - Purchasing Document Item
EKBE - Purchasing Document History
EBKN - Account Assignment Data in Purchasing Requisition
EKKN - Account Assignment Data in Purchasing Document
EKAN - Vendor Address in Purchasing Documents
EKES - Vendor Confirmation

Inventory Management
MSEG - Document item detail for Material Document
MKPF - Document header data for Material Document
BSIM - Index for Material to the FI-Document
BSEG - Accounting Document Data
MARD - Storage Location data for Material
MSKA - Sales Order Stock (Special Stock Indicator 'E')
MKOL - Consignment Vendor (Special Stock Indicator 'K')
MSSL - Subcontractor (Special Stock Indicator 'O')
MSPR - Project Stock (Special Stock Indicator 'Q')
MSTB - Stock in Transit
MCHB - Batch Stocks
MBEW - Material Valuation

Invoice Verification
EKBE - Purchasing Document History
RBKP - Invoice Document Header
RSEG - Invoice Document Item