supply of spares for burckhardt make msq compressors 56-k-01 and 56-k-11 supply of spares for burckhardt make msq compressors 56-k-01 and 56-k-11 , list of item ( s ) / work ( s ) as per tender documents , sealing ring pair, p / n 122248572201 , oil sealing ring, pn-122860031001 , th / ling ring, d66 / 50x7.85, pn-122250645200 , vlv dischrge cm 76 ( 50-100 ) pn122860021200 , valve suct. - cm 76 ( 50-100 ) , 122860020200 , flat gasket, p / n 122000006412 , sealing ring, p / n 122250320200 , valve discharge, p / n 122860019200 , guide ring dia 150, pn-122860006001 , guide ring dia 120, 122860009001 , o ring d 189 87x5.33, pn-122000911781