Model: 3271930

Helical Gear

Special Features:

Ctrbore on both ends w/ 1.531 in. Nom dia, 0.281 in. Nom depth

Properties:

Body Style
Webbed, solid
Spline Quantity
6 both ends
Pitch Diameter
7.2500 inches
Teeth Quantity
58
Bore Style
Straight spline both ends
Hardness Rating
10.0 rockwell c and 13.0 rockwell c
Outside Diameter
7.499 inches
Teeth Type
Single helix
Tooth Form
Standard
Tooth Direction
Left
Pressure Angle
14.5000 degrees
Helix Angle
25.8167 degrees
Distance Between Body Face And Protruding Hub End
0.813 inches both ends
Face Width
1.750 inches
Bore Diameter
1.956 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
2.997 inches first end
Hub Diameter
2.997 inches second end
Material
Steel
Material Specification
Mil-s-890, class b military specification single material response
Style Designator
Protruding hubs
NSN
3020-00-391-4091
Part Number
3271930
Description
Gear,helical
CAGE
55380

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 3271930 NSN 3020-00-391-4091

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
17.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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:
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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