supply of kit for btpn valves.consist of 5 items , kit for btpn valves.consist of 5 items. - 1.master valve to drawing wd-86081-s-6 6, alt-16 vide (f/9), item 5, quantity 2 nos. 2. valve seat to drawing wd-86081-s-66, alt-16 vide (f/9), item no. 2, quantity 2 nos. 3. valve spindle to drawing wd-86081-s-61, alt-16 vide (f/10), item 10, q uantity 2 no. 4. valve operating screw to drawing wd-86081-s-66, alt-16 vide (f/9), item no. 4, quant ity 2 no. 5. valve spindle nut bottom to drawing wd-86081-s-66, alt-16 vide (f/9), item no. 12, quant ity 2 nos. material and specification as per drawing [ warranty period: 30 months after the d ate of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]