supply of improved high tensile tight lock center buffer coupler with aar -h - type headimproved high tensile tight lock center buffer coupler with aar -h - type head,improved high tensile tight lock center buffer coupler with aar -h - type head and balance d draft gear for fitment on bg passenger coaches confirming to rdso specification no. rdso / 2011/ cg-03. (rev.3) amendment 1 of july-2024 or latest consisting of 6 items. sl. no.1. tight lock coupler head aar - h - type with main pinqty-1 no., sl. no.2. balanced draft gear - qty-1 no., sl. no.3. supporting device with fast eners- qty- 1 no., sl. no.4. manual uncoupling device- qty-1 no., sl. no.5. base plate with fasteners- qty-1 n o., sl. no.6. support plate with fastenersqty-1 no. warranty period: 84 month(s) from the date of supply [ warranty period: 84 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: m ax 8 lacs ] ]