supply of set of helical springs for primary suspension of wag7 locos.set of helical springs for primary suspension of wag7 locos.,set of helical springs for primary suspension of wag7 locos comprising of 1) outer coil spring to rdso drg no skvl - 039, alt-6 or latest = 1 no (group-b category only), 2) inner coil spring to rdso drg no skvl - 037, alt-6 or latest = 1 no (group-b cate gory only) (material specification to rdso spec. no. mp.o.4900.12, rev-05 of dec. 2020). [ warr anty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]