Model: 4M9933

Helical Gear

Special Features:

45 degrees 3.156 in. Diameter countersink in bore on 1st end, letter b stamped on center line of tooth 73 degrees 5 min 54 sec ccw from center line of keyway, letter c stamped on centerline of tooth 130 degrees 54 min 6 sec cw from center line of keyway

Properties:

Body Style
Plain, solid
Pitch Diameter
4.2000 inches
Teeth Quantity
40
Bore Style
10a w/ keyway both ends
Hardness Rating
77.0 rockwell c and 81.0 rockwell c
Outside Diameter
4.400 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
20.0000 degrees
Helix Angle
17.7528 degrees
Distance Between Body Face And Protruding Hub End
0.314 inches first end
Face Width
0.750 inches
Bore Diameter
2.566 inches both ends
Keyway Width
0.189 inches both ends
Distance From Bore Center To Keyway Bottom
1.385 inches both ends
Hub Style Designator
Plain first end
Hub Diameter
3.500 inches first end
Material
Steel
Style Designator
Protruding hub
NSN
3020-00-851-4716
Part Number
4M9933
Description
Gear,helical
CAGE
11083

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part 4M9933 NSN 3020-00-851-4716

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197339
UFC:
96710
LTL:
65.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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