A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 5920-01-450-6682
NSN 5950-01-272-6145
NSN 6650-01-376-6965
NSN 5945-01-147-6359
NSN 5985-00-952-3661
NSN 5930-00-833-4573
NSN 6645-01-121-6952
NSN 6150-00-539-9812
NSN 5925-01-565-6538
NSN 6150-00-391-1981
NSN 7035-01-216-4806
NSN 5945-01-444-2611