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radial-fin sleeve for the 2 in tube

radial-fin sleeve for the 2 in tube: bore Ø50.8 (the tube OD) × 82.85, 2 mm wall, 16 radial fins 1.6 thick to Ø80 over the last 75.85, 7 mm band with 3 × M4 tapped (Ø3.3) at 0 / 120 / 240°; drawn in the cup's frame (49 to 131.85 from its face)

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

STEP STL free, CC BY 4.0 (credit "Xem Studio")

Dimensions

feature	bore
value	Ø50.8 (tube OD)

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From the full sheet

Tri-clamp heat sink: radial fin sleeve for a 2 in closed-end cup: every size, notes, mating features and sources. What heat sink fits over a 2 inch tri-clamp cup?