NSN 3020-00-859-2554 10066517, 00-859-2554, 008592554
Product Details | SPUR ANTIBACKLASH GEAR
3020-00-859-2554 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: 10066517, 3020-00-859-2554, 00-859-2554, 3020008592554, 008592554
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 01 JAN 1962 | 00-859-2554 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-00-859-2554
Cross Reference | NSN 3020-00-859-2554
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10066517 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Related Products | NSN 3020-00-859-2554
Technical Data | NSN 3020-00-859-2554
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 FIRST GEAR STEEL COMP 303S HUB ALUMINUM ALLOY 2024 SECOND GEAR STEEL SPRING |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE HUB QQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| SURFACE TREATMENT | ANODIZE FIRST GEAR PASSIVATE HUB ANODIZE SECOND GEAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR |
| TEETH QUANTITY | 192 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | 4 PROTRUDING HUBS |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 4.042 INCHES |
| FACE NOMINAL WIDTH | 0.183 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.125 INCHES FIRST END 0.072 INCHES SECOND END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.218 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 0.875 INCHES FIRST END 0.609 INCHES SECOND END |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.110 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| MANUFACTURERS CODE | 18876 |
| DESIGN CONTROL REFERENCE | 10066517 |
Restrictions/Controls & Freight Information | NSN 3020-00-859-2554
| 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 | XX | |
| 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 3020-00-859-2554
Marines| Category | Code | Description |
|---|---|---|
| Stores Account Code | 1 | Marine Corps Stock Fund Account Item. |
| Combat Essentiality Code | 5 | Critical Repair Part to a Combat Essential End Item. Those parts or components whose failure in a combat essential end item will render the end item inoperative or reduce its effectiveness below the minimum acceptable level of efficiency. |
| Materiel Management Code | B | All CommoditiesDefense Logistics Agency, (DLA,) |
| Echelon Management Code | 2 | ICP/DSSC Marine Corps-managed Recoverability Code D items and Defense Logistics Agency (DLA)/TACOM/GSA) items which the integrated manager has not decontrolled. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DM | U.S. Marine Corps |
| Service Organization | M | U.S. Marine Corps |
| Reparability | Z | Nonreparable item. When unserviceable, condemn and dispose at the level indicated by the first digit of the maintenance code. |
| Acquisition Advice Codes | V | TERMINAL 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 Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |