A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 6220-01-174-1908
NSN 6620-00-010-8190
NSN 6685-01-573-7031
NSN 5985-01-508-5875
NSN 5895-00-732-9204
NSN 5998-00-202-8590
NSN 5895-01-483-6392
NSN 6320-00-405-2348
NSN 6150-01-501-6984
NSN 5910-00-012-5583
NSN 5935-00-932-2914
NSN 5930-01-431-8709