supply of set of safety washers for the wheel , set of safety washers for the wheel set assemblies and under gear assemblies of wap7/ wag9 three phase locomotives consisting of two items as follows : (1) safety washer (vs-12) for m12 bolt. article no-182-00361-004 of drg no-182-00361, qty per wheel set-57 nos. (2) safety washer (v s-6) for m6 bolt. article no-182-00361-001 of drg. no-182-00361, qty per wheel set-03 nos. clw drg no 1209-01-411-046. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]