The British Seagull® Outboard Amal 416 carburettor float regulates the amount of fuel allowed into the float bowl and hinges with a pin on the carburettor body.
This part is suitable for all British Seagull Outboard engines fitted with the Amal 416 Carburettor including: AF, EF, FS, SEF, TSEF, AFPC, SEFPC, TSEFPC, EFPW, AFPW, EGFPW, WSC, ESC, WSPC, ESPC & EFNR and also some very late EFPC & WS (not so common as the EFPC).
This British Seagull Amal 416 Carburettor Float has the slot adjacent to the retaining pin slot that the Float Needle Valve slots into.