Model: 6556509

Worm Gear

Special Features:

Used in valve operator

Properties:

Spline Quantity
35 both ends
End Application
Weapons system seawolf class ssn
Pitch Diameter
6.6071 inches
Face Type
Straight
Bore Style
Involute spline both ends
Spline Pitch Diameter
3.5000 inches both ends
Hardness Rating
175.0 brinell hultgren and 250.0 brinell hultgren
Outside Diameter
6.750 inches
Thread Form Quantity
10
Thread Form Direction
Left-hand
Pressure Angle
20.0000 degrees
Helix Angle
6.1702 degrees
Distance Between Body Face And Protruding Hub End
0.314 inches second end
Body Recess Depth
0.301 inches first end
Face Width
0.655 inches
Bore Diameter
3.400 inches both ends
Hub Style Designator
Plain second end
Hub Diameter
4.240 inches second end
Material
Bronze
Material Specification
Astm b-584 assn standard single material response
Style Designator
Protruding hub, recessed body
NSN
3020-01-414-4393
Part Number
6556509
Description
Gear,worm
CAGE
53711

A gear with teeth on its outer surface in the form of helical threads.

Part 6556509 NSN 3020-01-414-4393

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05467
FIIG:
A27300
Concept No.:
1
App. Key:
AJ
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:
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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