supply of brush holder assembly complete without brushes for traction motor type hs 15250a as per ref no.1 to 19 of clw drg no. 2 twd 095 090,alt-5 or latest. firms have to supply the brush assly. with non- metallic spacers as per rdso drg no. skel-4683,instead of brass alloy metallic spacers.( as per rdso mod.sheet no.elrs/ms/0329 (rev.brush holder assembly complete without brushes for traction motor type hs 15250a as per ref no.1 to 19 of clw drg no. 2 twd 095 090,alt-5 or latest. firms have to supply the brush assly. with non- metallic spacers as per rdso drg no. skel-4683,instead of brass alloy metallic spacers.( as per rdso mod.sheet no.elrs/ms/0329 (rev.,brush holder assembly complete without brushes for traction motor type hs 15250a as per ref no.1 to 19 of clw drg no. 2 twd 095 090,alt-5 or latest. firms have to supply the brush assly. with non- metallic spacers as per rdso drg no. skel-4683,instead of brass alloy metallic spacers.( as per rdso mod.sheet no.elrs/ms/0329 (rev.o). arcing stud b.h. side and fixing bracket for rocker ring (ref.14 & 16) are to be supplied as per rdso drg.no.skel-4707. (as per rdso mod. sheet no.elrs/ms/0347., rev.0). [ warranty period: 30 months after the date of delivery ]