Product Details | HELICAL GEAR

3020-00-078-9846 A gear, cylindrical in form, with teeth on the outer surface at an angle to the axis of the gear. See also GEAR, ANTIBACKLASH, HELICAL

Part Alternates: 256097C, 3020-00-078-9846, 00-078-9846, 3020000789846, 000789846

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

Supply Group (FSG) NSN Assign. NIIN
30 07 AUG 1967 00-078-9846

Drawings & Photos | NSN 3020-00-078-9846


Cross Reference | NSN 3020-00-078-9846

Part Number Cage Code Manufacturer
256097C 1ML14 D.W. HERCULES, LLC DBA HERCULES ENGINE COMPONENTS
256097C 28265 HERCULES ENGINE CO INC

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Technical Data | NSN 3020-00-078-9846

Characteristic Specifications
MATERIAL IRON CAST OVERALL
TEETH QUANTITY 50
TEETH TYPE SINGLE HELIX
TOOTH FORM STANDARD
TOOTH DIRECTION RIGHT
PRESSURE ANGLE 14.5000 DEGREES
HELIX ANGLE 15.0000 DEGREES
STYLE DESIGNATOR 9 ONE PROTRUDING HUB, ONE RECESSED HUB
PITCH DIAMETER 6.4699 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 6.7100 INCHES
FACE NOMINAL WIDTH 0.847 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.746 INCHES FIRST END
NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END 0.194 INCHES SECOND END
BORE STYLE 10A W/KEYWAY BOTH ENDS
BORE NOMINAL DIAMETER 1.250 INCHES BOTH ENDS
KEYWAY NOMINAL WIDTH 0.250 INCHES BOTH ENDS
NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM 0.725 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 4A 1 STEP FIRST END 1 PLAIN SECOND END
HUB NOMINAL DIAMETER 2.030 INCHES SECOND END
END NOMINAL LENGTH 0.200 INCHES FIRST END
END NOMINAL DIAMETER 1.622 INCHES FIRST END
FIRST STEP NOMINAL LENGTH 0.546 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER 2.030 INCHES FIRST END
BODY STYLE 4B WEBBED, OFFSET, WITH LIGHTENING HOLES

Restrictions/Controls & Freight Information | NSN 3020-00-078-9846

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 SG 403 SCMS/GUED
5215 Thurlow St, Suite 5, Bldg 70C
Wright-Patterson AFB OH 45433
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