| 277 / | HD | SEAL FOR A JOINT OR JUNCTURE |
| FOR 100 | DF | RADIALLY CONTAINED PACKING WITH AXIALLY ACTING FOLLOWER (277/102) {15} |
| FOR 119 | DF | .~ Wedging surfaces (277/117) {2} |
| FOR 121 | ![]() | .~.~ Split or segmental packing (277/119) {2} |
| FOR 122 | DF | .~.~.~> Expanding and contracting (277/120) {1} |
| FOR 124 | DF | .~.~.~> Contracting (277/122) |