Push Button Latch Assembly
Installs on: Wing Door
OEM Hartwell #: H3479-5
Unical Aero’s H3479-5UA push button latch assembly is used to secure a 737/777 access door in the closed position. The door is located at center wing-to-body fairing access panel. The latch is installed on the access door with four attaching screws. The assembly consists of a bracket on which are mounted a trigger that is riveted together, a bolt, and two springs. The space between the latch buttons and the door are sealed by gaskets. The gaskets are made from elastomeric material. The bolt offset distance to the door structure is adjusted by the bolt offset adjustment screw. The trigger offset distance to the door structure is not adjustable. The bolt is spring loaded to the open position and is held in the closed position by the trigger. The trigger is spring loaded to the closed position.
B737-600, 700, 700C, 800, 900 SERIES
B777-200, 200LR, 300, 300ER/F SERIES
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