Model: FS27AA

Helical Gear

Special Features:

3/4 in. Radius boss on both hubs located at bottom of keyway

Properties:

Body Style
Webbed, with lightening holes
Pitch Diameter
9.1680 inches
Teeth Quantity
69
Bore Style
10a w/ keyway both ends
Bore Style
W/ keyway both ends
Hardness Rating
24.0 rockwell c
Outside Diameter
9.416 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
19.8164 degrees
Distance Between Body Face And Protruding Hub End
0.375 inches second end
Distance Between Body Face And Protruding Hub End
0.500 inches first end
Face Width
1.750 inches
Bore Diameter
1.625 inches first end
Keyway Width
0.375 inches both ends
Distance From Bore Center To Keyway Bottom
1.000 inches first end
Hub Style Designator
Plain both ends
Hub Diameter
2.250 inches second end
Hub Diameter
2.625 inches first end
Material
Steel
Material Specification
Mil-s-890, alloy no. 3 military specification single material response
Style Designator
Protruding hubs
NSN
3020-00-249-1157
Part Number
FS27AA
Description
Gear,helical
CAGE
88080

A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also gear, antibacklash, helical:

Part FS27AA NSN 3020-00-249-1157

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05464
FIIG:
A27300
Concept No.:
1
App. Key:
AF
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:
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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