NSN 3020-01-486-6752 1812860, 1981509 PC 15, 1981509PC15
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 | Item Name Code (INC) |
|---|---|---|---|
| 30 | 11 JUL 2001 | 01-486-6752 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Demand History | NSN 3020-01-486-6752
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 3020-01-486-6752 | 2008-11-322 | 2 | DIBBS |
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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: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item 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: | 0 | Represents 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 Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | Z | INSURANCE/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 Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |



