NSN 3020-00-204-9504
Part Details | SPUR ANTIBACKLASH GEAR
3020-00-204-9504 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: 633511, 63351-1, 63351001, 63351-001, 63351001, 63351-001, 3020-00-204-9504, 00-204-9504, 3020002049504, 002049504
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
30 | APR 13, 1973 | 00-204-9504 | 26668 ( GEAR, ANTIBACKLASH, SPUR ) |
REFERENCE DRAWINGS & PICTURES
PROTRUDING HUB

Cross Reference | NSN 3020-00-204-9504
Part Number | Cage Code | Manufacturer |
---|---|---|
63351-1 | 0AHP5 | CURTISS-WRIGHT CONTROLS, INCDIV SENSORS & CONTROLS |
63351-001 | 0AHP5 | CURTISS-WRIGHT CONTROLS, INCDIV SENSORS & CONTROLS |
63351-001 | 01351 | SOUTHERN GEAR & MACHINE, INC. |
Technical Data | NSN 3020-00-204-9504
Characteristic | Specifications |
---|---|
TEETH QUANTITY | 84 |
TOOTH FORM | STANDARD |
PRESSURE ANGLE | 20.0000 DEGREES |
PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
STYLE DESIGNATOR | PROTRUDING HUB |
PITCH DIAMETER | 1.3115 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM |
NOMINAL OUTSIDE DIAMETER | 1.343 INCHES |
FACE NOMINAL WIDTH | 0.125 INCHES |
ATTACHMENT METHOD | CLAMP |
SPECIAL FEATURES | FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY |
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY FREE FROM MERCURY CONTAMINATION |