Product Details | HELICAL GEAR

3020-00-289-7673 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: C7435011, C743501-1, 3020-00-289-7673, 00-289-7673, 3020002897673, 002897673

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

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-289-7673

Drawings & Photos | NSN 3020-00-289-7673


Cross Reference | NSN 3020-00-289-7673

Part Number Cage Code Manufacturer
C743501-1 21921 RCA CORP DISTRIBUTOR AND SPECIAL PRODUCTS DIV
C743501-1 49671 LOCKHEED MARTIN CORP LOCKHEED MARTIN INFORMATION SYSTEMS

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Technical Data | NSN 3020-00-289-7673

Characteristic Specifications
MATERIAL STEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-763,CL 6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HARDNESS RATING 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM HUB 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM TEETH
TEETH QUANTITY 22
TEETH TYPE SINGLE HELIX
TOOTH FORM STANDARD
TOOTH DIRECTION RIGHT
PRESSURE ANGLE 20.0000 DEGREES
HELIX ANGLE 45.0000 DEGREES
PITCH DIAMETER 3.1112 INCHES NOMINAL
NOMINAL OVERALL LENGTH 4.6875 INCHES
NOMINAL OUTSIDE DIAMETER 3.3112 INCHES
FACE NOMINAL WIDTH 0.750 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 2.687 INCHES SECOND END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 2.0000 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 4C 3 STEPS FIRST END
HUB NOMINAL DIAMETER 2.531 INCHES SECOND END
END NOMINAL DIAMETER 2.500 INCHES FIRST END
FIRST STEP NOMINAL LENGTH 1.250 INCHES FIRST END
FIRST STEP NOMINAL DIAMETER 2.531 INCHES FIRST END
SECOND STEP NOMINAL LENGTH 2.936 INCHES FIRST END
THIRD STEP NOMINAL LENGTH 0.125 INCHES FIRST END
THIRD STEP NOMINAL DIAMETER 0.312 INCHES FIRST END
BODY STYLE 1 PLAIN, SOLID
ATTACHMENT METHOD MOUNTING HOLE
MOUNTING HOLE TYPE AND QUANTITY 8 PLAIN AXIALLY THROUGH BODY, FIRST END
MOUNTING HOLE NOMINAL DIAMETER 0.272 INCHES AXIALLY THROUGH BODY, FIRST END
BOLT HOLE CIRCLE NOMINAL DIAMETER 4.312 INCHES AXIALLY THROUGH BODY, FIRST END
MANUFACTURERS CODE 21921
DESIGN CONTROL REFERENCE C743501-1

Restrictions/Controls & Freight Information | NSN 3020-00-289-7673

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 S 60
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 B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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