Model: 8B8121

Spur Gear

Special Features:

Spline minor dia. 1.999 in. Nom

Properties:

Body Style
Webbed, offset, solid
Spline Quantity
6 both ends
Pitch Diameter
6.3125 inches
Teeth Quantity
38
Bore Style
Straight spline both ends
Backlash Designation
Grade a
Hardness Rating
58.0 rockwell c and 63.0 rockwell c
Hardness Rating
58.0 rockwell c and 63.0 rockwell c
Outside Diameter
6.560 inches
Nominallength
1.954 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Distance Between Body Face And Protruding Hub End
0.296 inches second end
Face Width
1.093 inches
Hub Style Designator
1 groove first end
Hub Style Designator
Plain second end
Hub Diameter
4.125 inches second end
End Diameter
3.750 inches first end
First Groove Width
0.347 inches first end
First Groove Diameter
2.610 inches first end
Distance From End To First Groove
0.135 inches first end
Material
Steel
Material Specification
Qq-s-624, fs8620, fs8720, fs4620, fs4817 federal specification single material response
Style Designator
Protruding hubs
NSN
3020-00-423-0800
Part Number
8B8121
Description
Gear,spur
CAGE
95201

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 8B8121 NSN 3020-00-423-0800

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197337
UFC:
96690
LTL:
RATING VARIABLE
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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