Spur Antibacklash Gear

NSN: 3020-00-104-4891 | Model: AB650-121-1250

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

3020-00-104-4891

DEMIL

Pitch Diameter

Between 1.0073 inches and 1.0083 inches

Teeth Quantity

121

Bore Style

Plain both ends

Outside Diameter

1.024 inches

Tooth Form

Standard

Pressure Angle

20.0000 degrees

Distance Between Body Face And Protruding Hub End

0.250 inches first end

Face Width

0.125 inches

Bore Diameter

0.125 inches both ends

Hub Style Designator

Pinned first end

Hub Diameter

0.375 inches first end

Material

Steel comp 303 hub

Material Specification

Qq-s-763, class 303, cond a federal specification single material response hub

Surface Treatment

Passivate hub

Style Designator

Protruding hub

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 3020-00-104-4891 Datasheet

Supply Class (FSC):

Transmission Chain Sprockets Pulleys Gears

Cross Reference:

AB650-121-1250
414786-11
AB650-121-1250
414786-11
AB650-121-1250
414786-11

Cage Codes:

Southern Gear & Machine, Inc. (CAGE 01351)
Raytheon Company (CAGE 96214)

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

U - Precious metal content is unknown

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:

133300 - Machinery/machines noi
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.
ACC:

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

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
Y
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 $173.66 to $289.44..
Does NSN 3020-00-104-4891 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy, and Portugal
What is the NIIN of NSN 3020-00-104-4891?
001044891 or 00-104-4891
Does NSN 3020-00-104-4891 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 3020-00-104-4891?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 03, 1968