Model: 102-521

Gear Cluster

Properties:

Attachment Method
Mounting hole and clamp
Bore Style
Plain both ends
Design Type
Spur first gear
Design Type
Spur second gear
Construction
Assembled
Outside Diameter
1.030 inches second gear
Outside Diameter
2.693 inches first gear
Nominallength
0.860 inches
Hub Length
0.156 inches second end
Hub Length
0.2170 inches first end
Hub Length
0.234 inches between first and second gear
Bore Diameter
0.250 inches both ends
Hub Style Designator
Pinned second end
Hub Style Designator
Plain between first and second gear
Hub Style Designator
Split first end
Hub Diameter
0.313 inches first end
Hub Diameter
0.560 inches between first and second gear
Hub Diameter
0.950 inches second end
Precision Classification
Quality number 10 all gears or quality number 12 all gears
Material
Aluminum alloy 2024 first gear
Material
Steel comp 303s second gear
Material
Steel comp 303s shaft/hub
Material Specification
Mil-s-7720 military specification single material response second gear
Material Specification
Mil-s-7720 military specification single material response shaft/hub
Material Specification
Qq-s-225/6, t4 federal specification single material response first gear
Surface Treatment
Anodize first gear
Surface Treatment
Passivate shaft/hub
Surface Treatment
Passivate second gear
Surface Treatment Specification
Mil-a-8625, type 1 military specification single treatment response first gear
NSN
3020-00-960-4120
Part Number
102-521
Description
Gear Cluster
CAGE
13601

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 102-521 NSN 3020-00-960-4120

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:
133300
UFC:
63220
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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