Product Details | SPUR ANTIBACKLASH GEAR

3020-01-486-6752 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: 1812860, 1981509 PC 15, 1981509PC15, 3020-01-486-6752, 01-486-6752, 3020014866752, 014866752

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

Supply Group (FSG) NSN Assign. NIIN
30 11 JUL 2001 01-486-6752

Drawings & Photos | NSN 3020-01-486-6752


Demand History | NSN 3020-01-486-6752

Part Number Request Date QTY Origin
3020-01-486-6752 2008-11-322 2 DIBBS

Cross Reference | NSN 3020-01-486-6752

Part Number Cage Code Manufacturer
1812860 03956 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
1981509 PC 15 03956 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS

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Technical Data | NSN 3020-01-486-6752

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 2024 FIRST GEAR STEEL COMP 303 HUB ALUMINUM ALLOY 2024 SECOND GEAR STEEL COMP 302 SPRING
SURFACE TREATMENT ANODIZE OVERALL
TEETH QUANTITY 130
PRESSURE ANGLE 20.0000 DEGREES
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 2.0313 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 2.063 INCHES
FACE NOMINAL WIDTH 0.104 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END 0.325 INCHES FIRST END
BORE STYLE 1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER 0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 1 PLAIN FIRST END
HUB NOMINAL DIAMETER 0.437 INCHES FIRST END
SPECIAL FEATURES MODIFIED FROM STERLING INSTRUMENT P/N S9706A-Z6E130AP WITH PRELOAD AT 6 TEETH AND .0634 DIA. HOLE AND BORE AS SPECIFIED
III END ITEM IDENTIFICATION TRANSMITTER UNIT ASSY P/N 1981509; NAVIGATIONAL SYSTEMS
III PART NAME ASSIGNED BY CONTROLLING AGENCY GEAR,ANTI-BACKLASH, 130 TEETH, PIN TYPE

Restrictions/Controls & Freight Information | NSN 3020-01-486-6752

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: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.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 197339 WHEELS COG/GEAR/PINION I/S
Less than car load rating
Less than truck load rating R 65.0
Water commodity Code 593 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
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

Management | NSN 3020-01-486-6752

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each