NSN 3020-01-031-8519 01487, 01-487, 2502813
Product Details | SPUR ANTIBACKLASH GEAR
3020-01-031-8519 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: 01487, 01-487, 2502813, 3020-01-031-8519, 01-031-8519, 3020010318519, 010318519
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 02 DEC 1976 | 01-031-8519 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-01-031-8519
Demand History | NSN 3020-01-031-8519
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 3020-01-031-8519 | 2025-06-174 | 181 | DIBBS |
| 3020-01-031-8519 | 2025-06-159 | 181 | DIBBS |
| 3020-01-031-8519 | 2025-06-156 | 60 | DIBBS |
| 3020-01-031-8519 | 2025-05-142 | 181 | DIBBS |
| 3020-01-031-8519 | 2025-03-86 | 30 | DIBBS |
| 3020-01-031-8519 | 2025-02-55 | 75 | DIBBS |
| 3020-01-031-8519 | 2024-02-43 | 19 | DIBBS |
| 3020-01-031-8519 | 2023-12-341 | 19 | DIBBS |
| 3020-01-031-8519 | 2023-08-221 | 48 | DIBBS |
| 3020-01-031-8519 | 2023-02-36 | 210 | DIBBS |
| 3020-01-031-8519 | 2022-10-293 | 108 | DIBBS |
| 3020-01-031-8519 | 2022-05-129 | 33 | DIBBS |
| 3020-01-031-8519 | 2022-04-118 | 33 | DIBBS |
| 3020-01-031-8519 | 2021-10-291 | 59 | DIBBS |
| 3020-01-031-8519 | 2021-10-280 | 59 | DIBBS |
| 3020-01-031-8519 | 2015-07-195 | 250 | US |
| 3020-01-031-8519 | 2014-11-328 | 71 | DIBBS |
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Related Products | NSN 3020-01-031-8519
Technical Data | NSN 3020-01-031-8519
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 303 OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| TEETH QUANTITY | 75 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | 2 PROTRUDING HUB |
| PITCH DIAMETER | 1.5625 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 1.604 INCHES |
| FACE NOMINAL WIDTH | 0.104 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.139 INCHES FIRST END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 4B 2 STEPS FIRST END |
| END NOMINAL LENGTH | 0.065 INCHES FIRST END |
| END NOMINAL DIAMETER | 0.187 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.044 INCHES FIRST END |
| FIRST STEP NOMINAL DIAMETER | 0.437 INCHES FIRST END |
| SECOND STEP NOMINAL LENGTH | 0.030 INCHES FIRST END |
| SECOND STEP NOMINAL DIAMETER | 0.750 INCHES FIRST END |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.343 INCHES AXIALLY THROUGH HUB, FIRST END |
Restrictions/Controls & Freight Information | NSN 3020-01-031-8519
| 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. |
| 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 | HD | Naval Inventory Control Point 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 3020-01-031-8519
Navy| 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 |