Model: 8B8120

Gear Cluster

Properties:

Bore Style
Plain both ends
Design Type
Spur first gear
Design Type
Spur second gear
Backlash Designation
Grade a all gears
Construction
Solid
Hardness Rating
58.0 rockwell c teeth and 63.0 rockwell c teeth
Outside Diameter
3.8615 inches second gear
Outside Diameter
4.1975 inches first gear
Nominallength
3.495 inches
Hub Length
1.448 inches between first and second gear
Bore Diameter
1.626 inches both ends
Hub Style Designator
1 step between first and second gear
Hub Diameter
2.812 inches between first and second gear
Material
Steel
Material Specification
Qq-s-624 federal specification single material response
NSN
3020-00-423-0797
Part Number
8B8120
Description
Gear Cluster
CAGE
95201

A cylindrical item having a full 360 degree (6.282 radians) complement of teeth on two or more surfaces. It may be a one-piece casting or composed of two or more separate items firmly held together by welding, rivets, pins, or the like, to form a single unit. It is designed to mount on a shaft. For items consisting of a shaft with an integral complement(s) or gear teeth, see gearshaft (as modified). Excludes gear subassembly, speed decreaser.

Part 8B8120 NSN 3020-00-423-0797

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
36636
FIIG:
A270A0
Concept No.:
App. Key:
A
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:
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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