Model: 21978

Bevel Gear

Properties:

Body Style
Plain, with lightening holes
Attachment Method
Mounting hole
Pitch Diameter
6.0000 inches
Teeth Quantity
60
Bore Style
Plain both ends
Mounting Hole Thread Series Designator
Unc axially through body, first end
Mounting Hole Thread Size
0.250 inches axially through body, first end
Mounting Hole Type And Quantity
3 threaded axially through body, first end
Outside Diameter
6.060 inches
Nominallength
2.000 inches
Teeth Type
Straight
Pressure Angle
20.0000 degrees
Pitch Angle
15.0000 degrees
Distance Between Body Face And Protruding Hub End
0.250 inches second end
Face Width
0.517 inches
Bore Diameter
4.015 inches both ends
Hub Style Designator
Plain second end
Hub Diameter
4.473 inches second end
Bolt Hole Circle Diameter
5.158 inches axially through body, first end
Material
Steel
Style Designator
Peripheral face, back hub protruding
NSN
3020-01-018-1822
Part Number
21978
Description
Gear,bevel
CAGE
31923

A gear in the form of a frustum of a cone, with straight, skewed, or curved teeth, cut on the external face. See also gear, antibacklash, bevel.

Part 21978 NSN 3020-01-018-1822

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05463
FIIG:
A27300
Concept No.:
1
App. Key:
AE
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:
3.5000lbs
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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