Model: 4221

Helical Gear

Special Features:

Letter i stamped on 1st end 2 degrees from groove center line cw, groove 0.250 in. Min 0.253 in. Max w, 0.171 in. Min 0.181 in. Max deep on face of hub

Properties:

Body Style
Plain, solid
Pitch Diameter
2.0585 inches
Teeth Quantity
22
Bore Style
W/counterbore counter bore, second end
Outside Diameter
2.223 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
27.2667 degrees
Distance Between Body Face And Protruding Hub End
0.176 inches first end
Face Width
0.375 inches
Bore Diameter
0.625 inches counter bore, second end
Counterbore Depth
0.052 inches counter bore, second end
Counterbore Diameter
1.250 inches counter bore, second end
Hub Style Designator
1 step first end
End Length
0.031 inches first end
End Diameter
1.000 inches first end
First Step Length
0.145 inches first end
First Step Diameter
1.688 inches first end
Material
Steel comp 1213
Material Specification
Aisi c1113 assn standard single material response
Style Designator
Protruding hub
NSN
3020-00-517-0618
Part Number
4221
Description
Gear,helical
CAGE
0ATF2

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 4221 NSN 3020-00-517-0618

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:
0.5000lbs
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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