Product Details | SPUR ANTIBACKLASH GEAR

3020-00-406-3521 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: GMAB64A48P202405, GMAB64A48P2-0-2405, 608793, 60879-3, 3020-00-406-3521, 00-406-3521, 3020004063521, 004063521

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

Supply Group (FSG) NSN Assign. NIIN
30 13 APR 1970 00-406-3521

Drawings & Photos | NSN 3020-00-406-3521


Cross Reference | NSN 3020-00-406-3521

Part Number Cage Code Manufacturer
60879-3 82340 EDO CORPORATION DIV DEFENSE SYSTEMS
60879-3 9Y580 EDO CORPORATION DBA EDO NAVAL COMMAND AND SONAR
GMAB64A48P2-0-2405 04391 FLUID MECHANISMS OF HAUPPAUGE, INC.

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Technical Data | NSN 3020-00-406-3521

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
TEETH QUANTITY 48
TOOTH FORM STANDARD
PRESSURE ANGLE 20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
BACKLASH DESIGNATION GRADE D
STYLE DESIGNATOR 4 PROTRUDING HUBS
PITCH DIAMETER 0.7500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 0.7812 INCHES
FACE NOMINAL WIDTH 0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.234 INCHES FIRST END 0.052 INCHES SECOND END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.241 INCHES BOTH ENDS
ATTACHMENT METHOD CLAMP
MANUFACTURERS CODE 9Y580
DESIGN CONTROL REFERENCE 60879-3

Restrictions/Controls & Freight Information | NSN 3020-00-406-3521

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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

Management | NSN 3020-00-406-3521

Category Code Description
Cognizance Codes9CNavy-owned stocks of defense construction material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9CDefense Supply Center Columbus
Columbus, OH 43215
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each