Transition Screw Coupling Arrangement. Drawing No. : Rdsos Drg. No. Sk. 69503, Alt. 11 , Item Nos.1 To 10. Material And Specification : As Per Drawing And Conforming To Irs Specification No. R 9- 66, Corrigendum No. 3 Of Dec. 1988. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]