supply of set of spares (insulating rod assly)set of spares (insulating rod assly),set of spares (insulating rod assly) for brush holder and + ve and - ve support for traction motor type hs 15250 a each set consisting of 4 types of items (1)insulating ro d assembly for brush holder as per rdso/drg. no. skel-4440 ref. no. 1 to 10 qty./set= 03 nos. (2)ins ulating rod complete assly. for +ve or -ve support to rdso drg. no.skel 4439, alt-1 ref.1 to 4 along with (i) two steel flat washers (id-17mm, od-38mm & thickness-3mm to is:2016/1967) (ii)two hex nu ts to is:1364,part-3, 1992,p class=8.0 and to the following details.thickness:maximum-14.8mm. as pe r drg.no. minimum-14.1mm, a/f:max-24mm/min-23.67 mm, a/c:26. [ warranty period: 30 months af ter the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]