supply of spherolastic rubber bearing (silent block) for aar-h type tight lock coupler head for lhb coaches conforming to rdso specification no. rdso/2011/cg-03 rev-03 , amendment slip no 1. of july 2024. make of silent blocks should be either tvs or gmt vide rdso letter no. mc/blb/cbc dt 31-08-2024.spherolastic rubber bearing (silent block) for aar-h type tight lock coupler head for lhb coaches conforming to rdso specification no. rdso/2011/cg-03 rev-03 , amendment slip no 1. of july 2024. make of silent blocks should be either tvs or gmt vide rdso letter no. mc/blb/cbc dt 31-08-2024.,spherolastic rubber bearing (silent block) for aar-h type tight lock coupler he ad for lhb coaches conforming to rdso specification no. rdso/2011/cg-03 rev-03 , amendment slip no 1. of july 2024. make of silent blocks should be either tvs or gmt vide rdso letter no. mc/blb/cbc dt 31-08-2024. item should be procured from rdso approved vendor sources for aar-h type tight lock co upler head for lhb coaches [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]