supply of ohk for check valve with choke kit consisting of 4 itemsohk for check valve with choke kit consisting of 4 items,ohk for check valve with choke kit consisting of 4 items. 1)filter item no.2-qty/kit-1. 2) valve sealing ring item no.4-qty/kit-1. 3) compression spring item no.6-qty/kit-1. 4) sealing ring a 39 46 item no.7- qty/kit-1. to drg. rdso sk. 98111, alt.1, items 2,4,6 & 7 and to ap pendix i of rdso spec.02-abr-02, amendment no.4, of sep. 2016. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] csd/per, sr tamil nadu 2989.00 set => limited