Model: DD421S55-0368PC19

Helical Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
6.7980 inches
Teeth Quantity
77
Bore Style
Tapered w/keyway both ends
Hardness Rating
55.0 rockwell c and 63.0 rockwell c
Outside Diameter
6.8810 inches
Teeth Type
Single helix
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
19.2667 degrees
Face Width
1.250 inches
Keyway Width
0.312 inches both ends
Distance From Bore Center To Keyway Bottom
0.721 inches both ends
Taper Major Diameter
1.130 inches both ends
Material
Steel
Style Designator
Hubless
NSN
3020-00-420-4688
Part Number
DD421S55-0368PC19
Description
Gear,helical
CAGE
80064

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 DD421S55-0368PC19 NSN 3020-00-420-4688

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

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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