Model: HM025-689-1

Spur Gear

Special Features:

With 4 lightening holes equally spaced within 0.060 in, 1.250 in dia

Properties:

Body Style
Webbed, with lightening holes
Spline Quantity
14 both ends
Attachment Method
Mounting hole
Pitch Diameter
4.4444 inches
Teeth Quantity
40
Bore Style
Involute spline both ends
Spline Pitch Diameter
0.5833 inches both ends
Hardness Rating
31.0 rockwell c and 36.0 rockwell c
Mounting Hole Type And Quantity
4 plain axially through body, first end
Outside Diameter
4.667 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.250 inches
Bore Diameter
0.644 inches both ends
Hub Style Designator
Plain both ends
Hub Diameter
0.875 inches both ends
Precision Classification
Quality number 8
Mounting Hole Diameter
0.094 inches axially through body, first end
Material
Steel comp 4140
Material Specification
Mil-s-5626 military specification single material response
Surface Treatment
Oxide
Surface Treatment Specification
Mil-c-13924, class 1 federal specification single treatment response
Style Designator
Flush hub
NSN
3020-01-238-8337
Part Number
HM025-689-1
Description
Gear,spur
CAGE
1T765

A gear, cylindrical in form, with straight teeth on the outer surface parallel to the axis of the gear. See also gear, antibacklash, spur. For bulk material, see rod, pinion.

Part HM025-689-1 NSN 3020-01-238-8337

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05466
FIIG:
A27300
Concept No.:
1
App. Key:
AH
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
6.1 X 6.1 X 0.0
Paclk Weight:
1.2000lbs
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:
197337
UFC:
96690
LTL:
RATING VARIABLE
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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