supply of pin for horizontal lever , pin for horizontal lever items 1 to 4 of irs drg. no. w/pn-88, alt.-1. material and specifica tion for item - 1 should be as per is 2062 : 2011 (re-affirmed - 2021) with amendment no. 1 of nov. 20 12, gr. e 250 a. material and specification for item 2 and 3 should be as per drg. no. w/pn - 88, alt. - 1. bulb cotter should be item - 3 of drg. no. wd-94068-s-01, alt. - 4. material and specification for bulb co tter should be is 1079 : 2017 (re-affirmed - 2022), gr. hr4 or to irs specification no. m-41-1997 read with all amendments including amendment slip no. 2 of march - 2006. other details confirming to icf s pecification no. icf/md/spec-008, rev. no. 2 of jan - 2001. [ warranty period: 30 months after the dat e of delivery ] ]