supply of o ring for axle box .size 250 x 3 nvr 1872 wag-9/wap7 locos , o ring for axle box .size 250 x 3 nvr 1872 wag-9/wap7 locos.( this is shelf life it ems and should be procured with staggered delivery period. supplier to mention /print date of manufac turing on the item & item to be supplied within 90 days of manufacture date. ) as per drg.no. as per a bb drg. no. ib-012-00750 rev 0 or latest(latest version/alteration as on the date of tender invitati on will be applicable) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]