supply of set of air spring assembly ( 140 kn capacity ) along with hardware items for mainline / rajdhani coaches for icf type bogies. 1 ) air spring assembly ( 140 kn capacity ) for mainline / rajdhani coaches for icf type bogies confirming to rdso spec. no rdso / 2020 / cg-01, rev-nil, qty.-01no / set. ( leading parameters of 140kn air spring for icf bogie which are at page no.43 of 53 of rdso specification no. rdso / 2020 / cg-01, rev.-nil shall be strictly followed ) . 2 ) high tensile hexagonal socket-head cap screw, m16x45 long, is:2269 ( latest ) class 10.9, qty.- 4nos / set. 3 ) prevailing torque type hexagonal nut ( with non-metallic insert ) , m16:b, is:7002 ( latest ) class 10, qty.-4 nos / set. 4 ) hardened and tempered washer with 300 hv class ( 300 hv 370 hv ) hardness, a18, is:2016 ( latest ) , qty.-4 nos / set. note: all fasteners ( screws, nuts & washers ) shall be zinc electroplated to a3l finish of is:1367 ( part-11 ) and confirming to rdso spec. no rdso / 2020 / cg-01, rev-nil.