supply of set of gasket for switch groupset of gasket for switch group,set of gasket for switch group 1 & 2, tap changer subassembly. below are the details of qua ntity and description. 1. piston sealing ring (gaco) for 22pc ep contactor, suitable for mainline emu. bhel drg.no. 25801130003p1, cs no-bcs 1185, fig.ref.b-029 or equivalent. make:- cgc 2. set of gasket and washer for tap changer and switch group 1 and switch group2consisting of 6 items. (1) valve body gasket t/m-drg.no.ers/bg/acu/41 alt-2item no.1 - 20 nos/set. (2)gasket for w/k magnet val ve-drg.no.ers/bg/acu/41 alt-2 item no.2-6 nos./set. (3) cylinder gasket for nr 1 & 2drg.no.ers/b g/ acu/41 alt-2 item no.3-03 nos./set. (4) cylinder gasketfor t/m switch-drg. no.ers/bg/acu/41 a lt-2 item no.4-17 nos/set: (5) nylon washer drg.no.er s/bg/acu/41 alt-2 item no.5-60nos/set. (6)se rvomotor gasket for reverser and wco. drg.no.ers/bg/acu/97item-6 - 06nos. /set. 3. serial no. 1 & 2 combined makes 01 set. 4. 23no. items of sr. no. 1 are required in 1 dmc. 5. 01 set items of sr. no. 2 a re required in 1 dmc. 6. total 23no. items sr. no.1 and 01 set of sr. no. 2 makes 01 set. hence 01 set requi red in 1 dmc. [ warranty period: 30 months after the date of delivery ] ] senior section engineer gujarat 48.00 set