supply of procurement of one coach set of 160 kn air spring assem etc.procurement of one coach set of 160 kn air spring assem etc.,one coach set of 160 kn air spring assembly for fiat type bogie as per rdsos spec. no. rd so/cg/s/23002 rev.-nil, scope of supply shall be as per clause 4.1 of rdsos spec. no. rdso/cg/s/23002 rev.-nil, each coach set will consist of four air spring assembly. the following items shall be supplied as pe r sl. no.12 of annexure vlll of rdsos spec. no. rdso/cg/s/23002 rev.-nil as loose and packed separately per air spring assembly - (a) high tensile hex. socket head cap screw - 4 nos. (b) hardened and tempered washer - 4 nos. (c) prevailing torque type hex nut m20 - 4 nos. the following additional spares also to be s upplied and packed separately per coach set: - (i) sealing 0-ring - 2 nos. (ii) high tensile hex. socket head cap screw - 4 nos. (iii) hardened washer and tempered washer - 4 nos. (iv) prevailing torque type hex. n ut m20 - 4 nos. make/brand: - resistoflex or similar (only rdso approved sources of the supply ) [ w arranty period: 30 months after the date of delivery ] ]