NSN 3020-00-109-5668
Part Details | SPUR ANTIBACKLASH GEAR
3020-00-109-5668 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.
Alternate Parts: 180117485, 1801174-85, 3020-00-109-5668, 00-109-5668, 3020001095668, 001095668
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
30 | AUG 02, 1968 | 00-109-5668 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
REFERENCE DRAWINGS & PICTURES
PROTRUDING HUB

Cross Reference | NSN 3020-00-109-5668
Part Number | Cage Code | Manufacturer |
---|---|---|
1801174-85 | 03956 | NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV NAVIGATION AND MARITIME SYSTEMS |
Technical Data | NSN 3020-00-109-5668
Characteristic | Specifications |
---|---|
TEETH QUANTITY | 85 |
TOOTH FORM | STANDARD |
PRESSURE ANGLE | 20.0000 DEGREES |
STYLE DESIGNATOR | PROTRUDING HUB |
PITCH DIAMETER | 1.7710 INCHES NOMINAL |
NOMINAL OUTSIDE DIAMETER | 1.8130 INCHES |
FACE NOMINAL WIDTH | 0.125 INCHES |