Well, everywhere I looked up, It says that the su 33 can carry the kh31A.
 
	This is something I found;
 
	Armament
 
	
		Guns: 1 × 30 mm Gryazev-Shipunov GSh-30-1 autocannon with 150 rounds
	
	
		Hardpoints: 12 × external hardpoints with a capacity of up to 6,500 kg (14,300 lb) of ordnance,with provisions to carry combinations of:
		
			
				Rockets:
				
					
						S-8KOM/BM/OM
					
					
						S-13T/OF
					
					
						S-25OFM-PU
					
				
			
			
				Missiles:
				
					
						Air-to-air missiles:
						
							
								8 × R-27R/ER/T/ET
							
							
								4 × R-73E
							
						
					
					
						Anti-ship missiles:
						
							
								Kh-31A
							
							
								Kh-41
							
						
					
					
						Anti-radiation missiles:
						
							
								Kh-25MP
							
							
								Kh-31P
							
						
					
				
			
			
				Bombs:
				
					
						RBK-500 cluster bomb
					
					
						Up to 500 kg (1,100 lb) bombs
					
				
			
		
	
 
	I cannot say that this is 100% correct.