Hydraulic System DREAMLINER Transport Elements(cont Solid film lubricated B-nut Wired”nut 1. Allows sleeve to assemble off axis 2. Eliminates tube sleeve 3. Reduces friction union and increases sealing force B-nut Spherical acorn sealing surface New Re-connectable 1. Allows sealing with off-axis assembly 2. Lack of pilot prevents jamming, reduces cost Tube End Fitting 3. Grit blasting not allowed on sealing surfaces 4. Eliminate chatter marks and out-of-round sealing surfaces Boeing ProprietBoeing Proprietary Hydraulic System Transport Elements (cont.) “Wired” nut: 1. Allows sleeve to assemble off axis 2. Eliminates tube twist 3. Reduces friction and increases sealing force Spherical acorn sealing surface: 1. Allows sealing with off-axis assembly 2. Lack of pilot prevents jamming, reduces cost 3. Grit blasting not allowed on sealing surfaces 4. Eliminate chatter marks and out-of-round sealing surfaces union sleeve B-nut Solid film lubricated B-nut New Re-connectable Tube End Fitting