Product Details | SPUR ANTIBACKLASH GEAR

3020-00-943-4444 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: AB25012001875, AB250-120-0-1875, AB2501201875, AB250-120-1875, 12042802, 1204280-2, 5176541, 51765412, 5176541-2, 3020-00-943-4444, 00-943-4444, 3020009434444, 009434444

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

Supply Group (FSG) NSN Assign. NIIN
30 09 FEB 1966 00-943-4444

Drawings & Photos | NSN 3020-00-943-4444


Demand History | NSN 3020-00-943-4444

Part Number Request Date QTY Origin
AB250-120-0-1875 2019-07-195 1 DIBBS
AB250-120-1875 2019-07-195 1 DIBBS
AB250-120-0-1875 2019-01-29 1 DIBBS
AB250-120-1875 2019-01-29 1 DIBBS

Cross Reference | NSN 3020-00-943-4444

Part Number Cage Code Manufacturer
1204280-2 02769 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
1204280-2 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
5176541 53711 NAVAL SEA SYSTEMS COMMAND
5176541-2 53711 NAVAL SEA SYSTEMS COMMAND
AB250-120-0-1875 01351 SOUTHERN GEAR & MACHINE, INC.
AB250-120-1875 01351 SOUTHERN GEAR & MACHINE, INC.

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Technical Data | NSN 3020-00-943-4444

Characteristic Specifications
MATERIAL ALUMINUM ALLOY BODY STEEL CORROSION RESISTING HUB
SURFACE TREATMENT ANODIZE BODY PASSIVATE HUB
TEETH QUANTITY 120
TOOTH FORM STANDARD
PRESSURE ANGLE 20.0000 DEGREES
PRECISION CLASSIFICATION QUALITY NUMBER 10 OR QUALITY NUMBER 11
STYLE DESIGNATOR 2 PROTRUDING HUB
PITCH DIAMETER 1.8750 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER 1.906 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 0.188 INCHES BOTH ENDS
HUB STYLE DESIGNATOR 5 PINNED FIRST END
HUB NOMINAL DIAMETER 0.563 INCHES FIRST END
MANUFACTURERS CODE 01351
DESIGN CONTROL REFERENCE AB250-120-1875

Restrictions/Controls & Freight Information | NSN 3020-00-943-4444

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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
NMF Description 133300 MACHINERY/MACHINES NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 593 unknown
Originating Activity Code HH Navy ICP
Mechanicsburg, PA 17055-0788
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 3020-00-943-4444

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