supply of set of two items for tap changer, 1) hex screw m10x30 to repl part no. s1304 or ae part no g1304 -200 nos/set. 2) belleville spring washer to repl part no. s1305 or ae part no. g1305 -200 nos/set. , set of two items for tap changer, 1) hex screw m10x30 to repl part no. s1304 or ae part no g1304 -200 nos/set. 2) belleville spring washer to repl part no. s1305 or ae part no. g1305 -200 nos/set. note: supply by sources as per clw item id: 2100713 in ireps vendor directory. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]