Model: 7666399

Gear Cluster

Special Features:

Wfirst gear 1.78125 in. Pitch dia; 57 teeth 14.500 degrees involute x 0.380 in. Thk; second gear 1.4275 in. Pitch dia; 42 teeth 14.500 degrees involute x 0.135in. Thk; third gear 1.000 in. Pitch dia; 16 teeth 14.500 degrees involute x 0.500 in. Thk

Properties:

Bore Style
Plain second end
Bore Style
W/counterbore first counterbore first end
Design Type
Spur all gears
Construction
Solid
Hardness Rating
56.0 rockwell c or 60.0 rockwell c
Outside Diameter
1.125 inches fourth gear
Outside Diameter
1.495 inches third gear
Outside Diameter
1.843 inches second gear
Nominallength
1.473 inches
Hub Length
0.135 inches between first and second gear
Hub Length
0.370 inches between second and third gear
Bore Diameter
0.626 inches second end
Bore Diameter
1.213 inches first counterbore first end
Counterbore Depth
0.291 inches second end
Counterbore Diameter
1.313 inches second end
Material
Steel comp 303se
Material Specification
Qq-s-624 al 4150 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-p-12011 fn 22.04 gr 1 military specification single treatment response
NSN
3020-00-346-7696
Part Number
7666399
Description
Gear Cluster
CAGE
19200

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 7666399 NSN 3020-00-346-7696

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
146250
UFC:
73060
LTL:
100.0
LCL:
--
WCC:
683
TCC:
Z
SHC:
9
ACC:
Arms/Weapons

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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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