A rounded or cone shaped device, generally made of rubber and used as the stopper for a water closet tank.
NSN 5945-01-319-4714
NSN 5855-01-323-5394
NSN 5920-00-256-9367
NSN 6240-01-322-7465
NSN 6150-01-468-5508
NSN 5920-00-113-6041
NSN 6145-01-205-3009
NSN 5920-00-455-7572
NSN 5999-01-156-5803
NSN 6220-01-415-8625
NSN 4140-01-012-2460
NSN 4140-00-846-4786