supply of set of spring for double lock assembly in wap4 & wag 7 locosset of spring for double lock assembly in wap4 & wag 7 locos,set of spring for double lock assembly in wap4 & wag 7 locos consist of 2 items. sl no (1) - spring sheet thickness .0.5mm material : ss304 (soft), sl no (2) - spring : od :10.5mm, wire : 1.2 mm len gth :29, no of coil: 9, material : spring steel gr ii, is 4454 (one sample to be got approved by the consigne e before manufacturing the bulk supply) [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]