supply of wheel set earthing equipment sub-assemblies , wheel set earthing equipment sub-assemblies in set consisting of following items: (1) isolating bush as per rcf drg. no. lw 71244, alt-latest, q ty- 10 nos. (2) bracket as per rcf drg. no. lw 71247, alt-latest, qty-02 nos. (3) spring for cover of wheel set earthing housing as per rcf drg. no. lw 7125 0, alt-latest qty- 01 no. (4) cover hinge tube for earthing brush assembly as per rcf drg. no. lw 71253, alt-latest qty- 01 no. (5) cover pin for wheel set ea rthing equipment as per rcf drg. no. lw71254, alt-latest qty- 01 no. (6) o-ring of dia. 140x2 mm of material: neoprene rubber, qty- 02 nos. (7) o ring of di a. 30x2 mm of material: neoprene rubber, qty- 02 nos. as per rcf specification no. edts 101, rev. c (latest) [ warranty period: 30 months after the date of delivery ] ]