NSN 3020-01-103-2778 SMD447421, SM-D-447421, 01-103-2778
Product Details | SPUR ANTIBACKLASH GEAR
3020-01-103-2778 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: SMD447421, SM-D-447421, 3020-01-103-2778, 01-103-2778, 3020011032778, 011032778
Mechanical Power Transmission Equipment | Gears, Pulleys, Sprockets, and Transmission Chain
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 30 | 10 NOV 1980 | 01-103-2778 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
Drawings & Photos | NSN 3020-01-103-2778
Cross Reference | NSN 3020-01-103-2778
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SM-D-447421 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS |
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Technical Data | NSN 3020-01-103-2778
| Characteristic | Specifications |
|---|---|
| TEETH QUANTITY | 60 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| BACKLASH DESIGNATION | GRADE C |
| STYLE DESIGNATOR | 4 PROTRUDING HUBS |
| PITCH DIAMETER | 1.2500 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 0.864 INCHES |
| FACE NOMINAL WIDTH | 0.125 INCHES |
| SPECIAL FEATURES | SPRING MATL MUSIC WIRE QQ-W-470,FINISH CADMIUM DICHROMATE MIL-F-14072 M225 |
| MANUFACTURERS CODE | 80063 |
| DESIGN CONTROL REFERENCE | SM-D-447421 |
Restrictions/Controls & Freight Information | NSN 3020-01-103-2778
| 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 |
|---|---|---|
| No Freight Information | ||