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Worm Shaft

NSN: 3040-00-991-6741 | Model: 10930650
ITAR Registered seal

A drive shaft having helical threa (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 Properties and Flags
NATO Stock Number
3040-00-991-6741
DEMIL
Yes - ITAR Controlled (Code B)
End Similarity
Not identical
Thread Length
0.582 inches second end, seventh portion
Overall Length
7.188 inches
Taper Length
0.125 inches second end, fourth portion
Err Default
Err default
Keyway Width
0.204 inches second end, sixth portion
Keyway Depth
0.093 inches second end, sixth portion
Screw Thread Series Designator
Unf second end, seventh portion
Shaft Thread Direction
Right-hand second end, seventh portion
Teeth Hardness Rating
Between 55.0 rockwell c and 62.0 rockwell c
Worm Thread Quantity
1
Worm Thread Lead
0.3938 inches
Worm Thread Direction
Left-hand
Worm Pressure Angle In Deg
14.500
Worm Helix Angle
85 degrees 45 min
Worm Outside Diameter
Between 1.932 inches and 1.936 inches
Worm Pitch Diameter
1.687 inches
Worm Thread Section Length
2.000 inches
Worm Body Length
2.000 inches
Worm Body Tapered Bearing Surface End
Not provided
Shaft Location
Both ends of worm
Straight Unthreaded Length
0.881 inches first end, second portion
Straight Unthreaded Section Diameter
1.250 inches second end, first portion
Unthreaded Section Keyway Width
0.1569 inches second end, third portion
Unthreaded Section Keyway Depth
0.179 inches second end, third portion
Taper Largest Diameter
0.874 inches second end, fourth portion
Special Features
Fourth portion, first end, chamfered to 0.062 by 45 deg
Material
Steel, qq-s-624, fs4617, fs4620, fs8617, fs8620 or fs8720
Material
Steel, qq-s-624, fs4617, fs4620, fs8617, fs8620 or fs8720
Surface Treatment
Oil
Surface Treatment
Lubricant, impregnated
Fsc Application Data
Traversing mechanism, machine gun

Pricing and Availability

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NSN 3040-00-991-6741 Datasheet

Supply Class (FSC):
Miscellaneous Power Transmission Equipment
Cross Reference:
  • 10930650
Cage Codes:
  • U S Army Tank Automotive Command (CAGE 19207)
Schedule B & Trade:
  • Schedule B: 8483105000 (NAICS 333613)

    Transmission shafts and cranks, except camshafts and crankshafts

  • SITC: 74810

    Transmission shafts (including cam and crank shafts) and cranks

  • End Use: 21180

    Industrial machines, other

Identification:
HMIC

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

PMIC

A - Item does not contain precious metal.

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    019940 - Auto transmissions r clutches

  • WCC:

    581 - Automobile parts, new

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • LTL:

    M - 85.0

  • ACC:

    V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing

  • TCC:

    Z - No special type of cargo code applicable

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 3040-00-991-6741 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Canada
What is the NIIN of NSN 3040-00-991-6741?
009916741 or 00-991-6741
Does NSN 3040-00-991-6741 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3040-00-991-6741?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1962