slack adjuster assembly bottom complete with bush for wap 7 locos as per rdso drg no sk vl 585 sheet no 3 of 03 ref 43 alt 1 or latest and bush as per rdso drg no skvl 586 ref 13 alt nil or lat est warranty period 30 months after the date of delivery quantity tolerance 5 age item category normal total po value variation permitted max 8 lacs