NSN 3020-00-388-9518 8007992, 00-388-9518, 003889518
Product Details | SPUR ANTIBACKLASH GEAR
3020-00-388-9518 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: 8007992, 3020-00-388-9518, 00-388-9518, 3020003889518, 003889518
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 01 JAN 1963 | 00-388-9518 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-00-388-9518
Cross Reference | NSN 3020-00-388-9518
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8007992 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Technical Data | NSN 3020-00-388-9518
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| SURFACE TREATMENT | PASSIVATE HUB |
| TEETH QUANTITY | 147 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 14.5000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 8 |
| STYLE DESIGNATOR | 38 PERIPHERAL FACE, HUBLESS |
| PITCH DIAMETER | 3.0625 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 0.766 INCHES |
| FACE NOMINAL WIDTH | 0.370 INCHES |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| MANUFACTURERS CODE | 18876 |
| DESIGN CONTROL REFERENCE | 8007992 |
Restrictions/Controls & Freight Information | NSN 3020-00-388-9518
| Category | Code | Description |
|---|---|---|
| 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. |
| Precious Metals Indicator Code: | U | Precious 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 | 121870 | GEAR/SPEED INCREASING/REDUCING MACH |
| Less than car load rating | Q | 70 |
| Less than truck load rating | P | 77.5 |
| 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 | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| 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 |