Product Details | SPUR ANTIBACKLASH GEAR

3020-00-730-7444 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: 9139172, 3020-00-730-7444, 00-730-7444, 3020007307444, 007307444

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

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-730-7444

Drawings & Photos | NSN 3020-00-730-7444


Cross Reference | NSN 3020-00-730-7444

Part Number Cage Code Manufacturer
9139172 18876 U S ARMY AVIATION AND MISSILE COMMAND

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Technical Data | NSN 3020-00-730-7444

Characteristic Specifications
MATERIAL STEEL COMP 410 OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
TEETH QUANTITY 128
TOOTH FORM STANDARD
PRESSURE ANGLE 14.5000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 2.6667 INCHES NOMINAL
NOMINAL OVERALL LENGTH 0.562 INCHES
FACE NOMINAL WIDTH 0.250 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.312 INCHES FIRST END
MANUFACTURERS CODE 18876
DESIGN CONTROL REFERENCE 9139172

Restrictions/Controls & Freight Information | NSN 3020-00-730-7444

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 133300 MACHINERY/MACHINES NOI
Less than car load rating M 85
Less than truck load rating W Rating Variable
Water commodity Code 586 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
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