Product Details | SPUR ANTIBACKLASH GEAR

3020-00-800-0192 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.

Part Alternates: 8000192, 3020-00-800-0192, 00-800-0192, 3020008000192, 008000192

Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1962 00-800-0192

Drawings & Photos | NSN 3020-00-800-0192


Cross Reference | NSN 3020-00-800-0192

Part Number Cage Code Manufacturer
8000192 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 3020-00-800-0192

Characteristic Specifications
MATERIAL STEEL COMP 303 FIRST GEAR
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-STD-171,5.4 MIL STD SINGLE TREATMENT RESPONSE OVERALL
TEETH QUANTITY 150
TOOTH FORM STANDARD
PRESSURE ANGLE 14.5000 DEGREES
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 3.1250 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 3.163 INCHES
FACE NOMINAL WIDTH 0.188 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.347 INCHES FIRST END
BORE STYLE 10A W/KEYWAY BOTH ENDS
BORE NOMINAL DIAMETER 0.375 INCHES BOTH ENDS
KEYWAY NOMINAL WIDTH 0.096 INCHES BOTH ENDS
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM 0.246 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 4B 2 STEPS FIRST END
END NOMINAL LENGTH 0.031 INCHES FIRST END
END NOMINAL DIAMETER 0.435 INCHES FIRST END
FIRST STEP NOMINAL LENGTH 0.094 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER 0.516 INCHES FIRST END
SECOND STEP NOMINAL LENGTH 0.222 INCHES FIRST END
SECOND STEP NOMINAL DIAMETER 0.688 INCHES FIRST END
ATTACHMENT METHOD MOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY 2 THREADED AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE THREAD SERIES DESIGNATOR UNC AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE NOMINAL THREAD SIZE 0.112 INCHES AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE THREAD QUANTITY PER INCH 40 AXIALLY THROUGH BODY, FIRST END
MANUFACTURERS CODE 18876
DESIGN CONTROL REFERENCE 8000192

Restrictions/Controls & Freight Information | NSN 3020-00-800-0192

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 197339 WHEELS COG/GEAR/PINION I/S
Less than car load rating
Less than truck load rating R 65.0
Water commodity Code 593 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable