Boaters' Resale Shop of TX 2512 2004.31 SEA RAY HEAD DOOR LATCH & KEY 290SD-07

Boaters' Resale Shop of TX 2512 2004.31 SEA RAY HEAD DOOR LATCH & KEY 290SD-07 IN ORIGINAL BOX "NEW OTHER" * SEE ALL 6 PHOTOS & DETAILS  * SOLD AS PICTURED * ITEM WAS PREOWNED, IN ORIGINAL BOX & PACKING, IN GREAT PHYSICAL CONDITION AND APPEARS TO HAVE NEVER BEEN INSTALLED OR DEPLOYED AND HAS NOT BEEN TESTED

Stainless Steel Head Door Latch for 3/4" Door Thicknesses 9507441
The item you are looking for is likely a locking, spring-loaded boat latch, often made of stainless steel,
Used on the Sea Ray 290 Sundeck or 290 Sun Sport model boats.
The number 290SD-07 likely refers to the 290 Sundeck model and potentially the year 2007, and "SS LATCH" 
A common compatible part is the Orcas locking pull latch, but specific OEM part numbers vary depending on the exact application (e.g., hatch, cabin door, windshield) and year of the boat.

Key Specifications of Common Latches
Sea Ray Boat Locking Spring Loaded Latch: Measures approximately 3 1/8" in diameter overall and requires an approximate 3" diameter cutout for installation.
Sea Ray Boat Locking Pull Latch (Part #1841802): Measures approximately 2 3/8" in diameter overall and requires an approximate 2" diameter cutout for installation.
Material: Typically polished stainless steel, designed for marine environments.