procurement of spares for chicago make air compressor model hn2t 180lp and hx2t 60 np installed at dfah system at ggsstp, rupnagar. , model:hn2t-180lp (pac) , big end bearing(1901000057) , oil wiper ring pair (1903144508) , packing ring with spring(1903144408) , piston ring (1903322008) , rider ring (1903322108) , valve plate(e-2229164) , valve spring suction valve(h3486164) , valve spring discharge valve h3488164 , ‘o’ ring for valve holder (1903022108) , oil pump assembly (1903939390) , ‘o’ ring for piston dia (51) 1903021908 , oil filter element with gasket (1903060111) , model:hx2t 60 np (iac) , main bearing (1901000052) , big end bearing (1901000051) , oil wiper ring(1903145908) , packing ring (1903145508) , valve plate (1903222505) , spring plate(suc) (1903222705) , spring plate discharge (1903222805) , valve seat suction (z2544150) , valve seat discharge z2545150 , o ring for valve cover (1903021208) , air suction filter element (w0849801) , rider ring (1901000186) , piston ring lp (1901000176) , sleeve for lp piston (19023655803) , piston ring second stage (1903391108) , suction valve assemble 2nd stage (1903254290) , discharge valve assemble 2nd stage (1903254390) , oil seal ring (0666600051) , inner head assembly-lp(z1644154) , cylinder assembly-lp (250 dia) (z1653153) , outer head assembly-lp(z1643154) , inner head assembly-hp(z1647154) , cylinder assembly –hp(160 dia) (z1654153) , outer head assembly-hp(z1546154) , motor pulley (spc type 3 grooves)-1903791333