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Worm Shaft NSN 3040-00-490-4858

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 3040-00-490-4858 NSN: 3040-00-490-4858

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Features and Characteristics

End Similarity
Not identical
Overall Length
1.959 inches
Worm Thread Quantity
4
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
20.000
Worm Outside Diameter
0.375 inches
Worm Pitch Diameter
Between 0.322 inches and 0.325 inches
Shaft Hardness Rating
Between 48.0 rockwell c and 53.0 rockwell c
Worm Thread Section Length
0.750 inches
Worm Body Length
1.326 inches
Shaft Location
One end of worm
Straight Unthreaded Length
0.237 inches second end, first portion
Straight Unthreaded Section Diameter
0.197 inches second end, second portion
Unthreaded Section Keyway Width
0.1720 inches first end, first portion
Unthreaded Section Pin Hole Diameter
0.1470 inches second end, second portion
Material
Steel sae 4140
Material
Steel sae 4140
FSC
3040 Miscellaneous Power Transmission Equipment
NIIN
004904858
NSN
3040004904858

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
W21562
Cage Code:
70255
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 3040-00-490-4858
What are the manufacturers of nsn 3040004904858?
Does this nsn 3040004904858 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3040004904858
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 3040004904858 contain any precious metals?
Precious metal content is unknown.
Does nsn 3040004904858 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3040004904858?
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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