Procurement of D- 1 AUTO DRAIN VALVE RUBBER PART KIT CONSISTING OF 6 ITEMS. DESCRIPTION: SL. NO. ( 1 ). DIAPHRAGM- SIL PART NO. 30176261 WABCO PART NO. 548828 FTIL PART NO. 518704000 QTY.- 1 NO. SL. NO. ( 2 ). GASKET SIL PT. NO. 30074402 WABCO PT. NO. 521786 FTIL PT. NO. 518706000 QTY.- 1 NO. SL. NO. ( 3 ). O RING SIL PT. NO. 30070239 WABCO PT. NO. 524609 FTIL PT. NO. 507704000 QTY.- 2 NOS. SL. NO. ( 4 ). SEAL SIL PT. NO. 30175240 WABCO PT. NO. 566944 FTIL PT. NO. 518702000 QTY.- 1 NO. SL. NO. ( 5 ) O RING SIL PT. NO. 30070224 WABCO PT. NO. 531868 FTIL PT. NO. 502702000 QTY.- 1 NO. SL. NO. ( 6 ). GASKET SIL PT. NO. 00184921 WABCO PT. NO. 93840 FTIL PT. NO. 508701000 QTY- 1 NO.