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Spur Antibacklash Gear

NSN: 3020-00-027-3644 | Model: 2041710-86

An item having one fixed gear and one free gear, both having the same complement of spur gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

NSN Properties and Flags
NATO Stock Number
3020-00-027-3644
DEMIL
NO
Attachment Method
Clamp
Pitch Diameter
0.8958 inches
Teeth Quantity
86
Nominallength
0.432 inches
Tooth Form
Standard
Pressure Angle
20.0000 degrees
Face Width
0.125 inches
Bore Diameter
0.187 inches both ends
Hub Diameter
0.248 inches first end
Precision Classification
Quality number 12
Material
Steel comp 416 body
Material Specification
Aisi 416/sae 51416 federal standard single material response
Surface Treatment
Passivate
Style Designator
Protruding hub

Pricing and Availability

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NSN 3020-00-027-3644 Datasheet

Supply Class (FSC):
Transmission Chain Sprockets Pulleys Gears
Cross Reference:
  • 2041710-86
  • L310034626
Cage Codes:
  • Navair and Navsea Managed (CAGE 10001)
  • Lockheed Martin Librascope (CAGE 36090)
Schedule B & Trade:
  • Schedule B: 8483409000 (NAICS 333612)

    Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

  • SITC: 74840

    Gears and gearing; ball screws; gear boxes and other speed changers (including torque converters)

  • 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.

ADPE

- Represents items with no adp components

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:

    121870 - Gear/speed increasing/reducing mach

  • WCC:

    593 - Motors and parts, (machinery and parts),(less than 35 feet)

  • 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:

    P - 77.5

  • 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

NSN Management Codes:
  • SOS
    Sms
  • AAC
    V
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    9b-----
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $403.99 to $673.31..
Does NSN 3020-00-027-3644 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Defense Logistics Agency
What is the NIIN of NSN 3020-00-027-3644?
000273644 or 00-027-3644
Does NSN 3020-00-027-3644 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-00-027-3644?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
May 09, 1967