Air spring Assembly 180 KN for Higher capacity loads used on EMU/ DMU coaches for ICF type bogies as per RDSO STR No. RDSO/ CG/ S/ 23002 Rev. Nil, Scope of supply shall be as per clause 4. 1 of STR. Four such sets for one coach set. Fasteners shall be of TVS ( or ) UNBRAKO Make Only. Spare O Rings and Fasteners Shall be Supplied at the rate of 1 ( Set ) for each Coach Set of Air Springs and Packed Separately Coach- Set Wise.