Part Number: 139885-01

Description: Helical Gear for Bell 171 NSN 3020-00-757-4658.

Properties

Body Style:

Plain, solid

End Application:

Helicopter, supercobra advance attack ah-1w

Pitch Diameter:

0.5007 inches

Teeth Quantity:

Bore Style:

Plain both ends

Criticality Code Justification:

Feat

Outside Diameter:

0.528 inches

Teeth Type:

Single helix

Tooth Form:

Stub

Tooth Direction:

Right

Pressure Angle:

20.0000 degrees

Helix Angle:

3.0000 degrees

Distance Between Body Face And Protruding Hub End:

0.148 inches first end

Face Width:

0.047 inches

Bore Diameter:

0.091 inches both ends

Hub Style Designator:

Split first end

Hub Diameter:

0.150 inches second end

Clamping Surface Length:

0.110 inches first end

Precision Classification:

Quality number 10

Special Features:

Weapon system essential

Material:

Steel comp 303 hub

Material Specification:

Mil-s-7720, cond a military specification single material response hub

Surface Treatment:

Passivate hub

Surface Treatment Specification:

Qq-p-35 federal specification single treatment response hub

Style Designator:

Protruding hubs

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