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Worm Shaft NSN 3040-00-684-2149

Item Description

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.

NSN 3040-00-684-2149 NSN: 3040-00-684-2149

Features and Characteristics

End Similarity
Not identical
Thread Length
1.313 inches either end, tenth portion
Overall Length
29.875 inches
Screw Thread Series Designator
Unf-2a either end, tenth portion
Shaft Thread Direction
Right-hand either end, third portion
Teeth Hardness Rating
Between 56.0 rockwell c and 62.0 rockwell c
Worm Thread Quantity
2
Worm Thread Lead
2.500 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
11 degrees 2 min
Worm Outside Diameter
4.881 inches
Worm Pitch Diameter
4.085 inches
Shaft Hardness Rating
C scale 24 min
Worm Thread Section Length
8.000 inches
Worm Body Length
8.000 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
7.8125 inches either end, fifth portion
Straight Unthreaded Section Diameter
3.250 inches either end, first portion
Unthreaded Section Keyway Width
0.4950 inches either end, ninth portion
Unthreaded Section Keyway Depth
0.2656 inches either end, ninth portion
Material
Steel, aisi8620
Fsc Application Data
Steam turbine
FSC
3040 Miscellaneous Power Transmission Equipment
NIIN
006842149
NSN
3040006842149

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
905J913-5
Cage Code:
90099
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8483105000
  • NAICS: 333613
  • SITC: 74810
  • Description: Transmission shafts and cranks, except camshafts and crankshafts
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3040-00-684-2149
What are the manufacturers of nsn 3040006842149?
Does this nsn 3040006842149 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3040006842149
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.
Does nsn 3040006842149 contain any precious metals?
Precious metal content is unknown.
Does nsn 3040006842149 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3040006842149?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
18249
FIIG:
T246-C
App. Key:
CA
Cond. Code:
1
Status:
A

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  •   Quality Inspected Parts
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