supply of carbon brush for traction motor type hitachi hs-15250 a as per rdso specification no.elrs/spec/cb/0027 (rev. , carbon brush for traction motor type hitachi hs-15250 a as per rdso specification no.elrs/spec/cb/00 27 (rev.0) of sept-2003 and conforming to rdso drawing no.el.3.bs.013 (mod). alt.5. spl note : the following grades are only acceptable. 1. acpl using grade eg-105 (s) imported/ indigenous of acpl or mersen india using imported grad e eg- 9049 of mersen/france or mersen india using grade eg-8220 of mersen india. 2. mersen india using imported grad e eg- 9049 of mersen/france should obtain carbon brush blocks for manufacture of brushes from approved manufacture r after inspection by rites [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]