: An industrial plumbing piece made of nickel-plated brass from RIEGLER . đź’Ž Jewelry & Collectibles

: A specific part number for brake discs (e.g., KAMOKA 103390 ) compatible with certain Honda models like the CR-V.

: A universal 3-inch flush valve kit by Lincoln Products used for toilet repairs.

đź’ˇ If you provide a bit more context (like if you're fixing a car or looking for a gift), I can find more specific details for you.

: A "Brachiosaurus Mecha Robot" assembly toy from Sembo Block . đź“» Media

The reference "103390" appears in several different industries, ranging from automotive parts to luxury jewelry. Because this number is used as a part or model identifier by multiple manufacturers, the "piece" you are looking for depends on the category: đźš— Automotive Parts

: A common replacement piece for Ford vehicles (like the Excursion and F-250/F-350 Super Duty, 5.4L V8 engines). It is often sold as a "one piece" kit under various brand names like YHTAUTO .

: A custom platinum jewelry piece featuring oval purple amethysts, identified as Style #103390 .

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