Model: E21-21

Spur Gear

Special Features:

1 0.138 in. Diameter threaded hole on hub for positioning

Properties:

Body Style
Plain, solid
Pitch Diameter
0.4375 inches
Teeth Quantity
21
Bore Style
Plain both ends
Hardness Rating
75.0 rockwell b and 83.0 rockwell b
Hardness Rating
75.0 rockwell b and 83.0 rockwell b
Outside Diameter
0.479 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.218 inches first end
Face Width
0.125 inches
Bore Diameter
0.188 inches both ends
Hub Style Designator
Pinned first end
Hub Diameter
0.375 inches first end
Material
Steel comp 303s and steel comp 303se
Material
Steel comp 303s and steel comp 303se
Material Specification
Mil-s-7720, comp 303s or 303se military specification single material response
Surface Treatment
Passivate
Style Designator
Protruding hub
NSN
3020-00-711-7003
Part Number
E21-21
Description
Gear,spur
CAGE
00328

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 E21-21 NSN 3020-00-711-7003

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:
--
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:
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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