Model: A3400

Worm Shaft

Properties:

End Similarity
Not identical
Thread Length
0.281 inches second end, second portion
Overall Length
3.125 inches
Screw Thread Series Designator
Unf second end, second portion
Shaft Thread Direction
Right-hand second end, second portion
Teeth Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.131 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
4 degrees 46 min
Worm Outside Diameter
0.583 inches
Worm Pitch Diameter
0.500 inches
Shaft Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Worm Thread Section Length
0.875 inches
Worm Body Length
1.234 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.218 inches second end, first portion
Straight Unthreaded Length
0.250 inches first end, first portion
Straight Unthreaded Length
0.546 inches first end, second portion
Straight Unthreaded Section Diameter
0.2502 inches first end, second portion
Straight Unthreaded Section Diameter
0.312 inches first end, first portion
Straight Unthreaded Section Diameter
0.3752 inches second end, first portion
Unthreaded Section Keyway Width
0.0625 inches first end, second portion
Unthreaded Section Keyway Depth
0.075 inches first end, second portion
Involute Spline Quantity
12 first end
Involute Spline Pressure Angle In Deg
14.5 first end
Involute Spline Pitch Diameter
0.2480 inches second end, third portion
Involute Spline Length
0.593 inches second end, third portion
Threaded Section Pin Hole Diameter
0.070 inches second end, second portion
Material
Steel
Material
Steel
Fsc Application Data
Actuator, electro-mechanical rotary
NSN
3040-00-694-8030
Part Number
A3400
Description
Worm Shaft
CAGE
17472

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 A3400 NSN 3040-00-694-8030

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
85.0
WCC:
593
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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