supply of bolster spring outer for blc wagon , bolster spring outer for blc wagon drawing no. :- contr-9404-s/7, alt-8, item no-1 spec. no. :- wd - 01 - hls - 94 ( rev. 5 ) . guarantee :- the spring shall be guaranteed for a peri od of five years from the date of manufacture of the spring. inspection:- inspection is to be carried out vide para 9.0 and clauses contained therein and stage inspection is required for this item in three sta ges as per clause- 9.2, 9.3 and 9.4 of spec. no. wd - 01 - hls - 1994 (rev. 5) (as per attached annexu re-a). [ warranty period: 60 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]