Model: 47-620-246-1

Bevel-helical Gear Cluster

Properties:

General Description
Steel, mil-s-5000 comp 4340 cond c4 or mil-s-5626 comp 4140 cond c4black oxide coated per bps fw4084 bell helicopter co, rockwell hardnessrating c scale 32 to 38, two gears w/internal hub, dim., 3.427 in. Min, 3.447in. Max o/a lg, 0.718 in. Nom hub outside dia, 0.5620 in. Nom id bevel gearend by 2.438 in. Lg, bevel gear data, 1.8510 in. Min, 1.8530 in. Max od, 1.6000in. Nom pitch dia, 0.187 in. Nom face width, 20 degrees pressure angle, left handdrive, 15 teeth, 0.33510 in. Circular pitch, helical fear data, 0.7210 in. Min0.7230 in. Max od, 0.6618 in. Nom pitch dia, 0.250 in. Nom face width, 14.5 degpressure angle, 19 degrees 11 min helix angle, right hand helix, 20 teeth, 0.09818in. Circular pitch, hub od threaded w/0.781-32 ns class 3 threads 0.200 in.Lg, 0.737 in. From shaft end, 0.312 in. Id by 0.937 in. Lg
NSN
3020-00-434-8341
Part Number
47-620-246-1
Description
Gear Cluster,bevel-helical
CAGE
97499

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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