Product Details | SPUR ANTIBACKLASH GEAR

3020-00-406-4784 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: AB250144P202498, AB250-144P2-0-2498, 608786, 60878-6, 3020-00-406-4784, 00-406-4784, 3020004064784, 004064784

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

Supply Group (FSG) NSN Assign. NIIN
30 15 APR 1970 00-406-4784

Drawings & Photos | NSN 3020-00-406-4784


Cross Reference | NSN 3020-00-406-4784

Part Number Cage Code Manufacturer
60878-6 82340 EDO CORPORATION DIV DEFENSE SYSTEMS
60878-6 9Y580 EDO CORPORATION DBA EDO NAVAL COMMAND AND SONAR
AB250-144P2-0-2498 01351 SOUTHERN GEAR & MACHINE, INC.

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Technical Data | NSN 3020-00-406-4784

Characteristic Specifications
MATERIAL ALUMINUM ALLOY OVERALL
TEETH QUANTITY 144
TOOTH FORM STANDARD
PRESSURE ANGLE 20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 12
BACKLASH DESIGNATION GRADE D
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 2.2500 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 2.2812 INCHES
FACE NOMINAL WIDTH 0.125 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.250 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 5 PINNED FIRST END
HUB NOMINAL DIAMETER 0.563 INCHES FIRST END
MANUFACTURERS CODE 01351
DESIGN CONTROL REFERENCE AB250-144P2-0-2498

Restrictions/Controls & Freight Information | NSN 3020-00-406-4784

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 3020-00-406-4784

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 CodesVTERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each