supply of 4 pin pre-cooling plug and socket , 63 amp 440 v ac, confirming to icf drawing. no. icf / sk- 7- 1-102 alt. r item col - vii for plug and item in col.-iv for socket. pre cooling plug col vii consists of : ( i ) item no. 3 plug housing 01 no. ( ii ) item no. 6 cover 01 no. ( iii ) item no. 7 coil spring 01 no. ( iv ) item no. 8 gasket 01 no. ( v ) item no. 9 pin 01 no. ( vi ) item no. 10 tube 01 no. ( vii ) item no. 13 bracket 01 no. ( viii ) item no. 14 plug terminal block 01 no. pre cooling socket col- iv consists of ( i ) item no. 4 socket terminal block 01 no. ( ii ) item no. 5 socket housing 01 no. [ warranty period: 30 months after the date of delivery ]