supply of improved high tensile tight lock center buffer coupler with aar-h.improved high tensile tight lock center buffer coupler with aar-h.,improved high tensile tight lock center buffer coupler with aar-h type head and balanced draft gear for fitment on bg passenger coaches confirming to rdso specification no. rdso/2011/cg-03(re v.-3) amendment 1 or latest consisting of 6 items - sl. no. 1 tight lock coupler head aar-h type with main pin. qty.1 no. (note : a. the silent block shall be of make gmt or tvs only with prominent marking for easy identification as per rdso letter no. mc/blb/cbc dt. 31.08.2024 or latest, b. the locking pin assembly shall be as per rdso drawing no. rdso/cg/drg/24003 or latest ), sl. no. 2 balance draft gear. qty. 1 no., sl. n o. 3 supporting device with fasteners. qty. 1 no., sl. no. 4 manual uncoupling device. qty.1 no., sl. no. 5 b ase plate with fasteners. qty. 1 no. (note: the stiffener plate shall be of grade is: 3885 part 2 grade 5 with hardness 245 bhn (max.) and as per rdso drawing no. rdso/cg/drg/24034 alt-1 and rdso letter no. mc/ blb/cbc dt. 24.04.2025 or latest). sl. no. 6 support plate with fasteners. qty. 1 no. [ warranty period: 8 4 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]