supply of poh kit for isolating cock , poh kit for isolating cock for c3w type dv consisting of 3 items conforming to air brak e maintenance manual for fright stock - g-97, read with all amendments, latest amendment. no. 3 of j an-2010. part no. of rdso approved firms sr. no (1) disc. o ring m/s faively transport india ltd. 60 3701000 m/s greysham co. gi/c3w/0015/149 qty/kit 2. sr.no.(2) disc. valve m/s faively transport ind ia ltd 603401000 m/s greysham co. gi/c3w192057 qty/kit 1. sr.no.(3) disc. o ring m/s faively tra nsport india ltd. 501708000 m/s greysham co. gi/c3w/0015/10 qty/kit 2. [ warranty period: 36 mo nths after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]