supply of poh kit of rdsos design passenger emergency alarm signal device to rdsos specn no. 02- abr-02 with appendix-j with amendment no.4 of sept. 2016 consisting of the following 8 items :- 1 ) grooved ring to rdsos sk-97018, ( sheet-1 ) , item no-3, alt no-4 ( four ) , qty / set=02 nos. ( 2 ) roller to rdsos sk-97018, ( sheet-2 ) , item no-1, alt no-3, qty / set=01 no. ( 3 ) ramp to rdsos sk-97018, ( sheet-2 ) , item no-3, alt no- 3 ( three ) , qty / set=01 no. ( 4 ) pin to rdsos sk-97018, ( sheet-2 ) , item no-4, alt -3 ( three ) , qty / set=01 no. ( 5 ) spring to rdsos sk-97018, ( sheet-2 ) , item no-6, alt no-3 ( three ) , qty / set=01 no. ( 6 ) o- ring to rdsos sk- 97018 ( sheet-2 ) item no.- 9, alt. no-3 ( three ) , qty / set-01 no., ( 7 ) o- ring to rdsos sk- 97018 ( sheet-2 ) , item no. 10, alt. no. 3 ( three ) , qty / set-01 no. ( 8 ) sltd.round and cheese hd. screw m5x10mm.to rdsos sk- 97017, item no 18, alt no.2 ( two ) , qty / set-04 nos. [ warranty period: 30 months after the date of delivery ]