Model: 657

Spur Gear

Properties:

Body Style
Plain, solid
Pitch Diameter
Between 17.2450 inches and 17.2550 inches
Teeth Quantity
138
Bore Style
Plain both ends
Hardness Rating
43.0 rockwell c hub
Hardness Rating
47.0 rockwell c teeth and 52.0 rockwell c teeth
Hardness Rating
47.0 rockwell c and 52.0 rockwell c teeth
Outside Diameter
17.444 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.750 inches
Bore Diameter
16.122 inches both ends
Material
Steel comp 1050
Material Specification
66 federal standard single material response and aisi/sae 1050 assn standard single material response
Style Designator
Hubless
NSN
3020-00-273-4223
Part Number
657
Description
Gear,spur
CAGE
70795

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 657 NSN 3020-00-273-4223

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
5.7000lbs
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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