Atlas Copco ZH centrifugal compressor Gearbox inspection kit from Ztechnique
Parts included are as follows.
Kit Includes 
 
O-ring (125" L)
0800 0012 38
1
O-ring (10" L)
0800 0012 38
1
O-ring*
1420 0507 39
2
O-ring*
1420 0508 20
3