Product Details | SPUR ANTIBACKLASH GEAR

3020-00-797-1252 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: 814085, 3020-00-797-1252, 00-797-1252, 3020007971252, 007971252

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

Supply Group (FSG) NSN Assign. NIIN
30 01 JAN 1962 00-797-1252

Drawings & Photos | NSN 3020-00-797-1252


Cross Reference | NSN 3020-00-797-1252

Part Number Cage Code Manufacturer
814085 98571 TELEDYNE TECHNOLOGIES INC DBA TELEDYNE CONTROLS

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Technical Data | NSN 3020-00-797-1252

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-268,COND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ANODIZE OVERALL
TEETH QUANTITY 204
TOOTH FORM STANDARD
PRESSURE ANGLE 20.0000 DEGREES
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 2.1250 INCHES NOMINAL
NOMINAL OVERALL LENGTH 0.395 INCHES
NOMINAL OUTSIDE DIAMETER 2.143 INCHES
FACE NOMINAL WIDTH 0.087 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.304 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.305 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 2 SPLIT FIRST END
HUB NOMINAL DIAMETER 0.312 INCHES FIRST END
ATTACHMENT METHOD CLAMP
MANUFACTURERS CODE 98571
DESIGN CONTROL REFERENCE 814085

Restrictions/Controls & Freight Information | NSN 3020-00-797-1252

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
No Freight Information