Model: 12Y4509

Worm Shaft

Special Features:

Drilled and thd hole in keyway end of shaft 1-1/8 in. Lg drilled hole 1/2-20 nf thd size to 7/8 in. Deepg25 microinch rms shaft center, 60 microinch rmsshaft outer ends, 160 microinch

Properties:

End Similarity
Identical
Overall Length
23.000 inches
Teeth Hardness Rating
Between 30.0 rockwell c and 34.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
1.200 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
27.500
Worm Helix Angle
5 degrees 40 min
Concave Worm Throat Curvature Radius
1.541 inches
Concave Worm Throat Diameter
12.227 inches
Worm Outside Diameter
Between 4.616 inches and 4.618 inches
Worm Pitch Diameter
3.850 inches
Shaft Hardness Rating
Between 30.0 rockwell c and 34.0 rockwell c
Worm Thread Section Length
3.750 inches
Worm Body Length
Between 11.962 inches and 11.977 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
1.375 inches both ends, first portion
Straight Unthreaded Length
1.8906 inches both ends, second portion
Straight Unthreaded Length
2.250 inches both ends, third portion
Straight Unthreaded Section Diameter
1.748 inches both ends, third portion
Straight Unthreaded Section Diameter
1.750 inches both ends, third portion
Straight Unthreaded Section Diameter
2.126 inches both ends, second portion
Straight Unthreaded Section Diameter
2.124 inches both ends, second portion
Straight Unthreaded Section Diameter
2.3625 inches both ends, first portion
Straight Unthreaded Section Diameter
2.3615 inches both ends, first portion
Unthreaded Section Keyway Width
0.4360 inches first end
Unthreaded Section Keyway Depth
0.249 inches first end
Unthreaded Section Pin Hole Diameter
0.6240 inches first end
Material
Steel
Material
Steel
Fsc Application Data
Winch, drum
NSN
3040-00-328-8862
Part Number
12Y4509
Description
Worm Shaft
CAGE
61465

A drive shaft having helical thread(s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and gear, worm.

Part 12Y4509 NSN 3040-00-328-8862

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18249
FIIG:
T246-C
Concept No.:
App. Key:
CA
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:
25.0 X 6.7 X 6.7
Paclk Weight:
42.0000lbs
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:
126900
UFC:
65750
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483105000
  • SITC: 74810
  • End Use: Industrial machines, other
  • NAICS: 333613
  • USDA: 1

Freight Class: Transmission shafts and cranks, except camshafts and crankshafts

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