A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 5895-01-567-0377
NSN 5920-01-626-3711
NSN 5960-01-143-1202
NSN 5905-00-851-7340
NSN 5996-00-258-4954
NSN 6610-01-490-5168
NSN 6130-00-279-8552
NSN 6135-01-238-2878
NSN 5960-00-234-5961
NSN 6150-00-632-7234
NSN 5930-01-487-9470
NSN 6110-01-158-1860