Model: B311-344

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
1.042 inches second gear
Outside Diameter
5.0417 inches first gear
Nominallength
0.598 inches
Hub Length
0.282 inches between first and second gear
Bore Diameter
0.219 inches both ends
Hub Style Designator
1 step between first and second gear
Hub Diameter
0.875 inches between first and second gear
Precision Classification
Quality number 10 all gears or quality number 11 all gears
Material
Copper alloy first gear
Material
Steel comp 304l second gear
Material
Steel comp 304l shaft/hub
Material Specification
Mil-b-994 military specification single material response first gear
Material Specification
Qq-s-763, class 304l federal specification single material response second gear
Material Specification
Qq-s-763, class 304l federal specification single material response shaft/hub
Surface Treatment
Passivate shaft/hub
Surface Treatment
Passivate second gear
NSN
3020-00-705-1660
Part Number
B311-344
Description
Gear Cluster
CAGE
92755

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 B311-344 NSN 3020-00-705-1660

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:
586
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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