This is a Spinner Adapter Kit by Great Planes.
FEATURES: Adapter kit for aluminum spinners
This steel adapter kit tightens the backplate & propeller onto the
engine, then using a single bolt-on design, holds & centers each
spinner perfectly on its baseplate.
Machined for accuracy
Includes aluminum bushing, prop washer and prop nut
This spinner adapter kit will fit the following engines:
-O.S. .61 FX & .61 SF
One year quality guarantee
Installation instructions provided on the header card
INCLUDES: (1) Propeller Nut
(1) Propeller Washer
(1) Aluminum Backplate Bushing
REQUIRES: 12mm Wrench To Tighten Propeller Nut
Aluminum Spinner w/Center Mounting Hole
SPECS: Shaft Size: 5/16-24
Prop Nut Length: 15/16" (24mm)
Backplate Bushing Inner Diameter: 5/16"
Outer Diameter: 3/8"