procurement of set of o-rings for leak proof make mechanical seals for various pumps installed in unit no.1 and 2 at 2x600 mw sstpp, mppgcl, dongalia. , mech. seal spares for acw pump, mechanical seal type:82, size-3.875”, drwg. no. b42 6685 r2 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for dmcw-sg pump, mechanical seal type:82, size-3.0”, drwg. no. b42 6686 r1 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for dmcw-tg pump, mechanical seal type : 82, size-2.5” drwg. no. b42 6217 r0 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for hotwell make up pump, mechanical seal type : 82, size-1.875” drwg. no. b42 5845 r0 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for service water pump, mechanical seal type : 82, size- 1.625” drwg. no. b42 6691 r0 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for potable water pump mechanical seal type:82 size- 1.625” drwg. no. b42 6691 r0 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. ) , mech. seal spares for potable water pump mechanical seal type:82 size- 65mm drwg. no. b42 6687 r0 , set of orings ( part no. 301a, 301b, 321 ) ( 1 set= 3 nos. )