supply of set of gasket and washer for tap changer & set of gasket for jumperset of gasket and washer for tap changer & set of gasket for jumper,set of gasket for jumper as per icf drawing no.icf/sk-7-5-054, alt j /2 of shee t 1 & 2. (item no.4, item no.21 and item no.22) set consist of each item one number. materi al-neoprene rubber- shore a hardness 70 +/-5. [ warranty period: 30 months after the date of delivery ] ] , set of gasket and washer for tap changer and switch group 1 and 2 consis ting of 6 items. (1) valve body gasket t/m-drg.no.ers/bg/acu/41 alt-2 item no.1 - 20 nos./se t. (2) gasket for w/k magnet valve-drg.no.ers/bg/acu/41 alt-2 item no.2-6 nos./set. (3) cyli nder gasket for nr 1 & 2- drg.no.ers/bg/acu/41 alt-2 item no.3-3 nos./set. (4) cylinder ga sket for t/m switch- drg.no.ers/bg/acu/41 alt-2 item no.4-17 nos./set. (5) nylon washer - drg.no.ers/ bg/acu/41 alt-2 item no.5-60 nos./set. (6) servomotor gasket for reverser an d wco- drg.no. ers/bg/acu/97 -6 nos./set. [ warranty period: 30 months after the date of delive ry ] ]