NSN 3020-01-038-4090 AC64W120Q12, AC64W-120-Q12, P173120CQ12
Product Details | SPUR ANTIBACKLASH GEAR
3020-01-038-4090 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: AC64W120Q12, AC64W-120-Q12, P173120CQ12, P17-3-120-CQ12, 3020-01-038-4090, 01-038-4090, 3020010384090, 010384090
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 07 APR 1977 | 01-038-4090 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
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Technical Data | NSN 3020-01-038-4090
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 303 OVERALL |
| TEETH QUANTITY | 120 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| STYLE DESIGNATOR | 2 PROTRUDING HUB |
| PITCH DIAMETER | 1.8750 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 1.906 INCHES |
| FACE NOMINAL WIDTH | 0.104 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.281 INCHES FIRST END |
| BORE STYLE | 1 PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 2 SPLIT FIRST END |
| HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END |
| CLAMPING SURFACE NOMINAL LENGTH | 0.250 INCHES FIRST END |
| ATTACHMENT METHOD | CLAMP |
Restrictions/Controls & Freight Information | NSN 3020-01-038-4090
| 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: | 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 |
|---|---|---|
| No Freight Information | ||



