supply of aoh replacement kitaoh replacement kit, aoh replacement kit as per rdso mp.mi.no.18, rev.-02 april-2008 for m / s sil ma ke air dryer consisting of 7 items sr.no. description of spares sil drg. no. wabco part no. qty. pe r air dryer ( nos. ) 1 filter coalescing 09870601 653298 01 2 nut 3 / 8 inch hex lock 71115603 569374 01 3 washe r 3 / 8 inch lock self sealing 09870701 6401300001 01 4 o ring 4.237 id 09872644 590013 01 5 kit humidity indic ator rebuild 09891301 304338 02 6 repair kit, drain valve 09891101 309112 01 7 repair kit, purge valve 0989120 1 309113 02 [ warranty period: 30 months after the date of delivery ]