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Worm Shaft NSN 3040-00-542-1686

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 3040-00-542-1686 NSN: 3040-00-542-1686

Features and Characteristics

End Similarity
Not identical
Thread Length
0.550 inches first end, second portion
Overall Length
19.540 inches
Shaft Thread Size
1/2 in.-20
Screw Thread Series Designator
Unf first end, second portion
Shaft Thread Direction
Right-hand first end, second portion
Teeth Hardness Rating
38.0 rockwell c
Worm Thread Quantity
2
Worm Thread Lead
0.2500 inches
Worm Thread Direction
Right-hand
Worm Pressure Angle In Deg
29.000
Worm Helix Angle
3 degrees 24 min
Worm Outside Diameter
0.74955 inches
Worm Pitch Diameter
0.68045 inches
Shaft Hardness Rating
38.0 rockwell c
Worm Thread Section Length
16.290 inches
Worm Body Length
16.790 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
One end of worm
Straight Unthreaded Length
2.200 inches first end, first portion
Straight Unthreaded Section Diameter
0.66935 inches first end, first portion
Unthreaded Section Keyway Width
0.12475 inches first end, first portion
Unthreaded Section Keyway Depth
0.19135 inches first end, first portion
Threaded Section Pin Hole Diameter
0.111 inches first end, second portion
Material
Steel
Material
Steel
Fsc Application Data
Radar set, nonairborne, except fire control and guided missile
FSC
3040 Miscellaneous Power Transmission Equipment
NIIN
005421686
NSN
3040005421686

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
40353
Cage Code:
70210
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 3040-00-542-1686
What are the manufacturers of nsn 3040005421686?
Does this nsn 3040005421686 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3040005421686
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 3040005421686 contain any precious metals?
No precious metal content.
Does nsn 3040005421686 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3040005421686?
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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