Boat part number 8102589 is a new complex piano hinge manufacturer unavailable, part number 7-3404-0000 . Commonly used on Tracker Marine Boats, part number 189157 . May be used on other applications.

This new piano hinge is constructed out of marine grade aluminum and measures approximately 24" L X 4" W (open) and 2 1/2" x 24" L closed. Features a fixed 90 degree angle measuring approximately 2" L x 2 3/8" H . The hinged end measures approximately 2" high when closed.
Please see photos for more details.
Hinge contains (16) 3 /16" dia. mounting holes located along the outside edge of the hinge, and in a staggered pattern.

Specifications:

Boat Manufacturer: Tracker Marine
Part Number: 189157
Manufacturer: Unavailable
Part Number: 7-3404-0000
Material: Aluminum
Overall Measurements: 24" L X 4" H
Closed Measurements: 24" L X 2 1/2" H
Mount(s): (16) 3/16" dia. Mounting Holes
Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate.
Instruction / installation manual not included. Hardware not included.