supply of slack adjuster [complete] type irsa - 600 for boxn wagon to rdsos drg.no. wd-82064-s-01-rc, item no. 1 to 48, alt.no.-12 or latest and rdsos specn. no. 07-abr-1992 with 5 amendments lastamendment no. 5 of sept.2016 or latest. length of control rod 1255 plus minus 1mm.