A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 6320-01-054-3046
NSN 5945-01-569-1516
NSN 5855-01-467-0128
NSN 5950-00-205-2932
NSN 5835-01-121-2098
NSN 6320-01-560-7177
NSN 5999-01-259-4636
NSN 6135-00-856-1343
NSN 5999-01-420-6370
NSN 5950-01-187-1027
NSN 2925-01-461-6372
NSN 4140-01-656-4546