supply of uncoupling gear arrangement of wagons bearing piece assembly, consisting of following 04 itemsuncoupling gear arrangement of wagons bearing piece assembly, consisting of following 04 items,uncoupling gear arrangement of wagons bearing piece assembly, consisting of following 04 items [1] bearing piece to rdso drg. no. wd-00046-s-01, alt. 7, item no. 4, [part drg. no. w/bd-6284, alt-2] %u2013 q ty. 02 nos. [2] washer 50 dia. x 12 mm thick to rdso drg. no. wd-00046-s-01, alt-7, item no. 5 (part drg. w/b d-6285, alt.- nil) %u2013 qty %u2013 04 nos. bottom washer to be welded with sr. no. 1 as shown in drg. [3] saf ety strap for bearing piece to rdso drg. no. wd-00046-s-01, alt.-7, item no. 6 (part drg. no. w/bd-6318, alt.-nil) %u2013 qty. 02 nos. to welded with sr. no. 1 as shown in drawing. [4] pin 25 mm dia x 68 mm long to rdso drg . no. wd-00046-s-01, alt. %u2013 7, item no. 7, qty. 02 nos. to be welded as shown in drawing. note: items at sr . no. 1,2,3 and 4 to be supplied in assembled condition without bracket as per drawing and top washer of part drg. no. w/bd-6285 to be supplied in loose. material and specification confirming to is:2062-2011 (ra:2021), with am endment no. 1 of nov. 2012, gr. e 250 a. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]