supply of kit for constant contact polyurethane side bearer padkit for constant contact polyurethane side bearer pad,kit for constant contact polyurethane side bearer pad design.b for casnub 22 nlb bogies consisting of 3 items,confirming to rdso. spec. no . wd-38-misc-2004, rev.3 of april 2025 . (1) round plate (steel) with stopper spring drg. no. aal-021101/n, alt.1, item no.3&6, qty/kit - 01 no. (2) p u lining set (1 top & bottom) drg. no. aal-021101/n, alt.1 item no.4, qty/kit - 01 set. (3)poly rings drg. no. aal- 021101/n,alt.1 item no.5, qty/kit - 02 nos. spec: [ warranty period: 30 months after the date of deliv ery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: m ax 8 lacs ] ]