Model: 45-028-21

Spur Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
0.4375 inches
Teeth Quantity
21
Mounting Hole Thread Series Designator
Unc axially through body, first end
Mounting Hole Thready Qty Per Inch (tpi)
40 axially through body, first end
Outside Diameter
0.479 inches
Nominallength
0.265 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.063 inches
Bore Diameter
0.187 inches both ends
Hub Diameter
0.375 inches first end
Precision Classification
Quality number 11
Mounting Hole Diameter
0.112 inches transversely through hub, first end
Material
Aluminum alloy 6061
Material Specification
Qq-a-225/8, t4 federal specification single material response
Style Designator
Protruding hub
NSN
3020-00-930-1888
Part Number
45-028-21
Description
Gear,spur
CAGE
56232

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part 45-028-21 NSN 3020-00-930-1888

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
92.5
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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