POH KIT FOR ISOLATING COCK [ BALL TYPE ] CONSISTING OF 03 ITEMS:, i SEAT RING TO RDSO DRG NO. SK.- 97003, ALT NO. 5, ITEM NO. 4, QTY/ SET = 02 NOS., ii SEALING WASHER TO RDSO DRG NO. SK- 97003, ALT. No. 5, ITEM NO. 5, QTY/ SET = 01 NOS. [ iii ] GLAND PACKING TO RDSO DRG NO. SK- 97003, ITEM NO. 8, CONFORMING TO RDSO SPECIFICATION NO. 02- ABR- 02, APPENDIX- I WITH AMENDMENT NO. 4 OF SEPT. 2016.