Model: D25870

Helical Gear

Properties:

Body Style
Webbed, solid
Pitch Diameter
6.2220 inches
Teeth Quantity
56
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Backlash Designation
Grade a
Outside Diameter
6.444 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Right
Pressure Angle
14.5000 degrees
Helix Angle
4.1999 degrees
Distance Between Body Face And Protruding Hub End
1.000 inches first end
Face Width
1.000 inches
Bore Diameter
1.1253 inches first end
Keyway Width
0.2492 inches first end
Distance From Bore Center To Keyway Bottom
0.6183 inches first end
Hub Style Designator
Plain both ends
Hub Diameter
1.750 inches both ends
Material
Copper alloy
Material Specification
Mil-b-16443, class 1 military specification single material response
Style Designator
One protruding hub, one flush hub
NSN
3020-00-253-8463
Part Number
D25870
Description
Gear,helical
CAGE
62983

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 D25870 NSN 3020-00-253-8463

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

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:
Construction Materials

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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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