Product Details | WORM WHEEL ANTIBACKLASH GEAR
3020-01-025-0489 An item having one fixed gear and one free gear, both having the same complement of worm wheel 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: Q1335SPECIAL, Q13-35SPECIAL, 4256A404PC3, 4256A424, 3020-01-025-0489, 01-025-0489, 3020010250489, 010250489
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 24 JUL 1976 | 01-025-0489 | 26669 ( GEAR, ANTIBACKLASH, WORM WHEEL ) |
Drawings & Photos | NSN 3020-01-025-0489
Demand History | NSN 3020-01-025-0489
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Related Products | NSN 3020-01-025-0489
3020-01-025-1016, 3020-01-025-1169, 3020-01-025-1270, 3020-01-025-1486, 3020-01-025-3129
Technical Data | NSN 3020-01-025-0489
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY 464 BODY STEEL COMP 303 HUB |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE BODY QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE HUB |
| SURFACE TREATMENT | PASSIVATE HUB |
| TEETH QUANTITY | 93 |
| TOOTH DIRECTION | RIGHT |
| FACE TYPE | CONCAVE |
| MATING THREAD LEAD QUANTITY | 2 |
| PRESSURE ANGLE | 14.5000 DEGREES |
| HELIX ANGLE | 3.5625 DEGREES |
| STYLE DESIGNATOR | 2 PROTRUDING HUB |
| PITCH DIAMETER | 1.4526 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 1.484 INCHES |
| FACE NOMINAL WIDTH | 0.188 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.219 INCHES FIRST END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.188 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 2 SPLIT FIRST END |
| HUB NOMINAL DIAMETER | 0.250 INCHES FIRST END |
| ATTACHMENT METHOD | CLAMP |
Restrictions/Controls & Freight Information | NSN 3020-01-025-0489
| 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: | 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 | 197337 | WHEELS COG/GEAR/PINION/SPROCK |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| 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 3020-01-025-0489
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 | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative | Purchasing | QTY UOM |
1 EA : Each |