A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 5965-01-069-0391
NSN 6240-01-515-8146
NSN 5930-01-160-7895
NSN 5915-00-010-8333
NSN 5996-01-610-7449
NSN 5930-01-076-5779
NSN 5935-00-632-7795
NSN 5920-01-412-9167
NSN 5925-01-400-3002
NSN 5930-00-538-7261
NSN 5975-00-263-3379
NSN 5975-01-634-0678