supply of set of 7 items. , sealing ring for manhole cover to drg. no. wd 86081-s-60, alt 10 or latest, item 7 ( part drg no wa/tf 2169 alt 1 or latest,) [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , sealing ring for filling pipe cap for btpn wagon to rdso drg. no.- wd-86081-s-61, alt.-13 or latest, item no.-21, cross section of sealing ring & other requirements as per irs drg.no.w/tf-896 k, dia.of sealing ring = 150 mm. [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , manhole jointing for btpn wagon to rdsos drg.no.wd-86081-s-61,alt.-13,item-4.m aterial and spec.:is:-2712/1998(3rd rev.),gr-0/2. [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , flange jointing for btpn tanks to rdso drg.no.- wd-86081-s-66, item no.11, alt. n o.14 or latest [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , filling pipe jointing for btpn tank to rdso drg. no. wd-86081-s-61, item no. 6, alt- 13. [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , hexagonal bolt (m10 x 90 long) with castle nut, split pin and washer for master valve arran gement of discharge system in btpn wagons to drawing no -j&td/cw/per sr.drg no. sk-1653 [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , vapour extractor jointing matl. spec:.is 2712.gr.0/2.rdso drg.no. wd-86081-s-61.al t.13 item no. 5 [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]