supply of air spring assembly [180kn capacity]air spring assembly [180kn capacity],one detc coach set air spring assembly [180kn capacity] consisting of fou r nos of air spring assembly, 20 nos of high tensile hexagonal socket -head cap scr ew m 20x50 long , 20 nos of a22 hardened & tempered washer with 300 hv class (300hv-3 70 hv) hardness, 20 nos of a 22 prevailing torque type hexagonal nuts (with non met allic inserts) m 20:b and 4 nos of sealing o ring to set list no. detc30057309 rev. 1, & r dso spec no. rdso/cg/s/23002 rev.-nil, april 2023. [ warranty period: 72 months after the date of del ivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]