neumann make mug compressor spares , list of item(s) / work(s) as per tender documents , piston with rod pos 5.020,p/n:20051600 , 1ststg suctvlv inter. 4.034 p/n 20057135 , 1st stg dis vlv inter 4.049 p/n 20057137 , 2nd stg suct vlv inte 5.034 p/n 20057145 , 2nd stg dis vlv inter 5.049 p/n 20057147 , 1st stg dischar valve 4.048 p/n 20057073 , 1st stg suction valve 4.033 p/n 20057072 , 2nd stg suction valve 5.033 p/n 20057075 , 1st stg valve gasket 4.030 p/n 20056224 , 2nd stg valve gasket 5.030 p/n 20056226 , 1st stg piston ring 4.012 p/n 20054867 , 1st stg guide ring 4.011 p/n 20054868 , 2nd stg piston ring 5.012 p/n 20054869 , 2nd stg guide ring 5.011 p/n 20054870 , 2ndstg pstnrod pkg int 5.060p/n 20054866 , int oil wiper,pkg,p/n:s1-087-000648 , intrnl intrmed pkg,p/n:s1-081-006391