Model: 4178621

Groove Pulley

Properties:

Spline Major Diameter
Between 0.9375 inches and 0.9485 inches
Groove Depth
Between 0.365 inches and 0.395 inches
Groove Width
0.3125 inches
Outside Diameter
9.750 inches
Overall Length
2.800 inches
Spline Quantity
14
Spline Minor Diameter
Between 0.815 inches and 0.820 inches
V Groove Angle In Deg
38.0
Material And Location
Fsteel, carbon, 1010 through 1025, qq-s-634 or steel, carbon, qq-s-721 or tube, steel, carbon, mt1010 through mix1020 or 1022 or 1025 qq-t-830, rim, steel carbon, 4130 through 4135 qq-s-624, hub steel, carbon, qq-s-741, web
Face Width
1.500 inches
Design Form
Webbed
Bore Type
Involute spline
Bearings
Not included
Spline Pressure Angle In Deg
30.0
Spline Length
1.000 inches
Groove Quantity
3
Counterbore Feature
Not included
Spline Pitch Diameter
0.8750 inches
Split Hub Feature
Not included
Web/spoke Relationship To Face Centerline
Not offset
Lightening Hole
Not included
Integral Cooling Vane
Not included
Groove Shape
V
Bore Feature
Included
Protruding Hub Characteristic
Plain
Hub End Outside Diameter And Location
1.283 inches aa end and 1.295 inches aa end
Distance From Outside Flange/rim To Hub End And Location
1.500 inches aa end
Style Designator
Webbed or spoked
NSN
3020-01-029-5728
Part Number
4178621
Description
Pulley,groove
CAGE
80212

A pulley with one or more grooved faces or rims of the same diameter. For pulleys encased in a shell or frame, see block, tackle. for items specifically designed for aviation, see pulley(1), groove, aviation.

Part 4178621 NSN 3020-01-029-5728

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08109
FIIG:
T353-A
Concept No.:
1
App. Key:
AA
Cond. Code:
1
Status:
A

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127300
UFC:
64560
LTL:
60.0
LCL:
60.0
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

Freight Class: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers

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