Model: SM-B-143874

Gear Cluster

Properties:

Bore Style
Plain both ends
Design Type
Spur all gears
Construction
Assembled
Outside Diameter
1.854 inches second gear
Outside Diameter
0.396 inches first gear
Nominallength
0.785 inches
Hub Length
0.125 inches second end
Hub Length
0.468 inches between first and second gear
Bore Diameter
0.187 inches second end
Bore Diameter
0.278 inches first end
Hub Style Designator
1 step between first and second gear
Hub Style Designator
Pinned second end
Hub Diameter
0.278 inches between first and second gear
Hub Diameter
0.500 inches second end
Material
Copper alloy second gear
Material
Steel comp 303s first gear
Material Specification
Mil-s-7720 military specification single material response first gear
Material Specification
Qq-b-613 federal specification single material response second gear
NSN
3020-00-696-4726
Part Number
SM-B-143874
Description
Gear Cluster
CAGE
80063

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 SM-B-143874 NSN 3020-00-696-4726

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:
197339
UFC:
96710
LTL:
65.0
LCL:
--
WCC:
723
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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