Model: 251-144CM154-37

Gear Cluster

Properties:

Attachment Method
Mounting hole
Bore Style
Plain both ends
Design Type
Spur first gear
Design Type
Spur second gear
Construction
Assembled
Outside Diameter
0.810 inches second gear
Outside Diameter
2.2795 inches first gear
Nominallength
0.438 inches
Hub Length
0.188 inches between first and second gear
Bore Diameter
0.250 inches both ends
Hub Style Designator
Plain between first and second gear
Hub Diameter
0.875 inches between first and second gear
Material
Aluminum alloy 2024 first gear
Material
Steel comp 303s second gear
Material
Steel comp 303s shaft/hub
Material Specification
Mil-s-7720, comp 303s military specification single material response second gear
Material Specification
Mil-s-7720, comp 303s military specification single material response shaft/hub
Material Specification
Qq-a-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
NSN
3020-00-097-9875
Part Number
251-144CM154-37
Description
Gear Cluster
CAGE
01351

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 251-144CM154-37 NSN 3020-00-097-9875

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:
SX
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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