Model: 81855

Spur Gear Sector

Properties:

Attachment Method
Mounting hole
Teeth Quantity
84
Bore Style
Plain both ends
Pitch Radius
4.3750 inches
Backlash Designation
Grade d
Mounting Hole Thread Series Designator
Unc transversely through hub, first end
Mounting Hole Thready Qty Per Inch (tpi)
20 transversely through hub, first end
Mounting Hole Thread Size
0.250 inches transversely through hub, first end
Mounting Hole Type And Quantity
1 threaded transversely through hub, first end
Nominallength
1.000 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.6250 inches first end
Face Width
0.375 inches
Bore Diameter
1.250 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
2.2500 inches first end
Outside Radius
4.3940 inches
Precision Classification
Quality number 9
Arc Length
5.2500 inches
Material
Aluminum alloy 2024
Surface Treatment
Anodize
Style Designator
Protruding hub
NSN
3020-00-211-2430
Part Number
81855
Description
Gear Sector,spur
CAGE
36378

A gear sector with complements of spur gear teeth.

Part 81855 NSN 3020-00-211-2430

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
28377
FIIG:
A27300
Concept No.:
1
App. Key:
AP
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:
121870
UFC:
64910
LTL:
77.5
LCL:
70.0
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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