diff --git a/erpnext/buying/doctype/purchase_common/purchase_common.py b/erpnext/buying/doctype/purchase_common/purchase_common.py
index fd02b02..7240a2d 100644
--- a/erpnext/buying/doctype/purchase_common/purchase_common.py
+++ b/erpnext/buying/doctype/purchase_common/purchase_common.py
@@ -131,7 +131,7 @@
 			'warehouse': wh,
 			'item_tax_rate': json.dumps(t),
 			'batch_no': '',
-			'discount_rate': 0		
+			'discount_rate': 0
 		}
 		
 		# get min_order_qty from item
@@ -170,6 +170,14 @@
 					'import_rate': 0,
 				})
 		
+		if obj.doc.doctype == 'Purchase Order':
+			supplier_part_no = webnotes.conn.sql("""\
+				select supplier_part_no from `tabItem Supplier`
+				where parent = %s and parenttype = 'Item' and
+				supplier = %s""", (arg['item_code'], obj.doc.supplier))
+			if supplier_part_no and supplier_part_no[0][0]:
+				ret['supplier_part_no'] = supplier_part_no[0][0]
+		
 		return ret
 
 	# Get Available Qty at Warehouse
diff --git a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.txt b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.txt
index 499cdef..73a6f01 100755
--- a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.txt
+++ b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.txt
@@ -3,9 +3,9 @@
 
 	# These values are common in all dictionaries
 	{
-		'creation': '2012-03-27 14:35:50',
+		'creation': '2012-05-15 12:14:38',
 		'docstatus': 0,
-		'modified': '2012-03-27 14:35:50',
+		'modified': '2012-06-29 13:05:33',
 		'modified_by': u'Administrator',
 		'owner': u'Administrator'
 	},
@@ -22,7 +22,7 @@
 		'section_style': u'Tray',
 		'server_code_error': u' ',
 		'show_in_menu': 0,
-		'version': 65
+		'version': 1
 	},
 
 	# These values are common for all DocField
@@ -76,6 +76,19 @@
 
 	# DocField
 	{
+		'colour': u'White:FFF',
+		'description': u'If Supplier Part Number exists for given Item, it gets stored here',
+		'doctype': u'DocField',
+		'fieldname': u'supplier_part_no',
+		'fieldtype': u'Data',
+		'hidden': 1,
+		'label': u'Supplier Part Number',
+		'permlevel': 1,
+		'print_hide': 1
+	},
+
+	# DocField
+	{
 		'doctype': u'DocField',
 		'fieldname': u'item_name',
 		'fieldtype': u'Data',
@@ -453,4 +466,4 @@
 		'permlevel': 0,
 		'print_hide': 1
 	}
-]
+]
\ No newline at end of file