Model: 7954478-2

Worm Shaft

Special Features:

Internally thd on 5th portion 1st end 0.875 in. Deep; 0.500-20 thd; unf, class 2b

Properties:

End Similarity
Not identical
Overall Length
17.594 inches
Teeth Hardness Rating
Between 58.0 rockwell c and 63.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.875 inches
Worm Thread Direction
Left-hand
Worm Pressure Angle In Deg
27.500
Worm Helix Angle
4 degrees 57 min
Worm Outside Diameter
Between 3.774 inches and 3.776 inches
Worm Pitch Diameter
3.216 inches
Shaft Hardness Rating
Between 17.0 rockwell c and 35.0 rockwell c
Worm Thread Section Length
3.750 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.125 inches first end, second portion
Straight Unthreaded Length
0.125 inches second end, second portion
Straight Unthreaded Length
0.875 inches second end, third portion
Straight Unthreaded Length
0.875 inches first end, fifth portion
Straight Unthreaded Length
0.875 inches first end, third portion
Straight Unthreaded Length
1.031 inches second end, fourth portion
Straight Unthreaded Length
1.125 inches first end, fourth portion
Straight Unthreaded Length
1.438 inches second end, fifth portion
Straight Unthreaded Length
3.656 inches first end, first portion
Straight Unthreaded Length
3.656 inches second end, first portion
Straight Unthreaded Section Diameter
1.500 inches first end, fifth portion
Straight Unthreaded Section Diameter
1.500 inches second end, fifth portion
Straight Unthreaded Section Diameter
1.750 inches first end, second portion
Straight Unthreaded Section Diameter
1.767 inches first end, fourth portion
Straight Unthreaded Section Diameter
1.767 inches second end, fourth portion
Straight Unthreaded Section Diameter
1.750 inches second end, second portion
Straight Unthreaded Section Diameter
1.771 inches first end, third portion
Straight Unthreaded Section Diameter
1.771 inches second end, third portion
Straight Unthreaded Section Diameter
2.156 inches first end, first portion
Straight Unthreaded Section Diameter
2.156 inches second end, first portion
Unthreaded Section Keyway Width
0.3720 inches first end, fifth portion
Unthreaded Section Keyway Depth
0.218 inches first end, fifth portion
Unthreaded Section Pin Hole Diameter
0.5050 inches second end, fourth portion and 0.5150 inches second end, fourth portion
Material
Steel, mil-s-13048, 8642, 4140 or 8740
Material
Steel, mil-s-13048, 8642, 4140 or 8740
NSN
3040-01-091-1982
Part Number
7954478-2
Description
Worm Shaft
CAGE
19207

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 7954478-2 NSN 3040-01-091-1982

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
20.0000lbs
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:
133300
UFC:
63220
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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