Model: B57271-1

Worm Wheel Gear

Special Features:

Mtg holes 180 degrees apart and 0.375 in nom distance from end of hub to ctr

Properties:

Body Style
Plain, solid
Pitch Diameter
2.5000 inches
Teeth Quantity
20
Bore Style
Plain both ends
Outside Diameter
2.8500 inches
Nominallength
1.500 inches
Tooth Direction
Right
Mating Thread Lead Quantity
1
Pressure Angle
14.5000 degrees
Distance Between Body Face And Protruding Hub End
0.750 inches first end
Face Width
0.750 inches
Hub Style Designator
Plain both ends
Hub Diameter
1.750 inches second end
Hub Diameter
1.750 inches first end
Mounting Hole Diameter
0.094 inches transversely through hub, first end
Material
Iron cast
Style Designator
Protruding hub
NSN
3020-00-917-2449
Part Number
B57271-1
Description
Gear,worm Wheel
CAGE
52151

A gear, cylindrical in form, with spiral teeth designed to mesh with the thread forms of a gear (1), worm. See also gear, antibacklash, worm wheel.

Part B57271-1 NSN 3020-00-917-2449

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05468
FIIG:
A27300
Concept No.:
1
App. Key:
AK
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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