O.S. Prop Nut Safety FT-120 II/FT-160

Tower Stock# OSMG7976  •  Manufacturer Stock# 46110100
O.S. Prop Nut Safety FT-120 II/FT-160 (large view)
Notes from our tech department:
This is a Replacement Locknut Assembly form OS Engines.


Durbable steel construction.
This helps keep the propellor to stay on the engine in the case of
backfire or detonation.
The inner nut screws into the outer and locks it in place.
The inner nut has threads for spinner mounting.
Replacement part suitable for the FT-120 II Gemini II and the
FT-160 Gemini-160 engines.


(1) inner prop nut 5/16-24 thread
(1) outer prop nut 5/16-24 thread
(1) prop washer I.D. 12mm O.D. 35.5mm
(1) spacer washer I.D. 12mm O.D. 19mm



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