Product Details | SPUR ANTIBACKLASH GEAR

3020-00-399-7337 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: SCB33085, SC-B-33085, 175068, 3020-00-399-7337, 00-399-7337, 3020003997337, 003997337

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

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1963 00-399-7337

Drawings & Photos | NSN 3020-00-399-7337


Cross Reference | NSN 3020-00-399-7337

Part Number Cage Code Manufacturer
175068 58022 R F PRODUCTS, INC.
SC-B-33085 05584 AUTODYNE MANUFACTURING CO., INC.
SC-B-33085 80063 US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS

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Technical Data | NSN 3020-00-399-7337

Characteristic Specifications
MATERIAL STEEL OVERALL
TEETH QUANTITY 36
TOOTH FORM STANDARD
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 1.1250 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 1.1870 INCHES
FACE NOMINAL WIDTH 0.120 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.200 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.249 INCHES BOTH ENDS

Restrictions/Controls & Freight Information | NSN 3020-00-399-7337

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:AItem does not contain precious metal
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 121870 GEAR/SPEED INCREASING/REDUCING MACH
Less than car load rating
Less than truck load rating P 77.5
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